About this time I had the good fortune of locating a supply of ecstasy. True to its name, ecstasy promotes a kind of euphoric jitteryness, in which it is just a thrill to be alive! Every fiber of your being is just quivering with energy. But ecstasy also has some interesting perceptual manifestations. In the first place there is a kind of jitteryness across the whole visual field. And this jitteryness is so pronounced that it can manifest itself in your eyeballs, that jitter back and forth at a blinding speed. If you relax, and just let the jitters take over, the oscillations of your eyes will blur the whole scene into a peculiar double image. But if you concentrate, and focus, the ocular jitter can be made to subside, and thus become less noticeable or bothersome. One of my friends got the ocular jitters so bad that he could not control them, and that prevented him from having a good time. That was the last time he took ecstasy. I however found it enchanting. And I analyzed that subtle jitteryness more carefully. It was not caused exclusively by jittering of the eyeball, but different objects in the perceived world also seemed to jitter endlessly between alternate states. In fact, all perceived objects jittered in this manner, creating a fuzzy blur between alternate states. This was interesting for a psychonaut! It seemed to me that I could see the mechanism of my visual brain sweeping out the image of my experience right before my eyes, like the flying spot of light that paints the television picture on the glowing phosphor screen. The refresh rate of my visual mechanism had slowed to such a point as to make this sweep visible to me. Very interesting indeed!
Having access simultaneously to ecstasy and LSD, I tried my hand at the practice known in the drug literature as “candy flipping”, that is, taking ecstasy and LSD in combination. The combination is so unique and different from the experience of either drug in isolation, that it has earned its own unique name. Under LSD and ecstasy I could see the flickering blur of visual generation most clearly. And I saw peculiar ornamental artifacts on all perceived objects, like a Fourier representation with the higher harmonics chopped off. LSD by itself creates sharply detailed ornamental artifacts, like a transparent overlay of an ornamental lattice or filigree pattern superimposed on the visual scene, especially in darkness. Ecstasy smooths out those sharp edges and blurs them into a creamy smooth rolling experience. I would sometimes feel some part of my world suddenly bulging out to greater magnification, like a fish-eye lens distortion appearing randomly in space, stretching everything in that portion of space like a reflection in a funhouse mirror. But it was not an actual bulging that changed the shape of the visual world, but more of a seeming bulging, that was perceived in an invisible sense without actual distortion of the world. For example one time I was putting on my boots to go outside, and as I reached down to pull on a boot, I suddenly got the impression that my leg grew to ten times its normal length, but I could still reach my boot because my arms had also grown by the same proportion, as had the whole space in that part of the room. Nothing actually looked any different after this expansion, it was just my sense of the scale of the world that had undergone this transformation, and even as I contemplated this, and finished securing my boot, the world shrank down gradually back to its normal scale again and the distortion vanished.
I have theorized that the way that ecstasy achieved its creamy smoothness is by dithering or alternating so fast between perceptual alternatives as to blur them together, like a spinning propellor that appears as a semi-transparent disc. At this level of observation I was unable to get my co-trippers to see the features that I was seeing. I would ask them when they saw that line of trees, did they not see illusory projections, like a transparent overlay of vectors projecting up from the trees into the blue sky that I could see? They did not see these things. So don’t expect to see what I see when I take LSD and ecstasy. I report my observations as I experience them, but observation of the psychedelic experience is every bit as subjective and variable as any phenomenological observation of our own experience. What stands out for one observer might remain completely obscure to another.
But the features I observed in my psychedelic experience all pointed toward a single self-consistent explanation of the mechanism of experience. It appears that the spatial structure of visual experience is swept out by some kind of volumetric imaging mechanism with a periodic refresh scan, not unlike the principle of television imagery, but extended into three dimensions. This was interesting indeed!
Quantifying Bliss – which proposes a model from first principles to explain the structural properties of an experience that makes it feel good, bad, mixed, or neutral (i.e. valence). It then derives from this model precise, empirically testable predictions for what really good experiences should look like. Specifically, MDMA euphoria is postulated to be the result of a high level of consonance between connectome-specific harmonic waves.
A Future for Neuroscience – which discusses the broad implications of a harmonic resonance theory of brain function for neuroscience, including new ways to conceptualize personality, and exotic states of consciousness.
The Pseudo-Time Arrow – which discusses a particular physicalist model to explain the experience of time by examining the patterns of *implicit causality* in networks of local binding (these terms are defined there). The bottom line being: each moment of experience contains time implicitly embedded in its geometric structure. Psychedelics, MDMA, and their combination would each have unique signature structural effects along the arrow of pseudo-time.
Taken together, these articles would provide an explanation for why MDMA has a uniquely euphoric effect. In particular, Lehar’s point that MDMA’s generalized jitteryness/dithering smooths out the sharp edges of an LSD experience would show up as the harmonization/regularization of the relationship between time-slices along the pseudo-time arrow of experience. The Symmetry Theory of Valence can then be applied in the resulting network of local binding after MDMA’s smoothing effect, leading to the peculiar insight that MDMA’s euphoric effects come from the symmetrification of experience along the axis of experiential time. The creaminess of experience produced by MDMDA that Lehar talks about feels very good precisely because it is the phenomenal character of a dissonance-free state of consciousness. Hence, the fundamental nature of pleasure is not behavioral reinforcement, the maximization of utility according to one’s utility function, or expected surprise minimization; pleasure is more fundamental and low-level than any of those properties. Pleasure, we predict, shall correspond to the degree and intensity of energized symmetries present in a bound moment of experience, and MDMA phenomenology is a clear example of what it looks like to optimize for this property.
At this point in the trip I became something that I can not put into words… I became atemporal. I existed without time… I existed through an infinite amount of time. This concept is impossible to comprehend without having actually perceived it. Even now in retrospect it is hard to comprehend it. But I do know that I lived an eternity that night…
What is time? When people ask this question it is often hard to tell what they are talking about. Indeed, without making explicit one’s background philosophical assumptions this question will usually suffer from a lot of ambiguity. Is one talking about the experience of time? Or is one talking about the physical nature of time? What sort of answer would satisfy the listener? Oftentimes this implicit ambiguity is a source of tremendous confusion. Time distortion experiences deepen the mystery; the existence of exotic ways of experiencing time challenges the view that we perceive the passage of physical time directly. How to disentangle this conundrum?
Modern physics has made enormous strides in pinning down what physical time is. As we will see, one can reduce time to causality networks, and causality to patterns of conditional statistical independence. Yet in the realm of experience the issue of time remains much more elusive.
In this article we provide a simple explanatory framework that accounts for both the experience of time and its relation to physical time. We then sketch out how this framework can be used to account for exotic experiences of time. We end with some thoughts pertaining the connection between the experience of time and valence (the pleasure-pain axis), which may explain why exotic experiences of the passage of time are frequently intensely emotional in nature.
To get there, let us first lay out some key definitions and background philosophical assumptions:
Key Terminology: Physical vs. Phenomenal Time
Physical Time: This is the physical property that corresponds to what a clock measures. In philosophy of time we can distinguish between eternalism and presentism. Eternalism postulate that time is a geometric feature of the universe, best exemplified with “block universe” metaphor (i.e. where time is another dimension alongside our three spatial dimensions). Presentism, instead, postulates that only the present moment is real; the past and the future are abstractions derived from the way we experience patterns in sequences of events. The present is gone, and the future has yet to come.
Now, it used to be thought that there was a universal metronome that dictated “what time it is” in the universe. With this view one could reasonably support presentism as a viable account of time. However, ever since Einstein’s theory of relativity was empirically demonstrated we now know that there is no absolute frame of reference. Based on the fundamental unity of space and time as presented by general relativity, and the absence of an absolute frame of reference, we find novel interesting arguments in favor of eternalism and against presentism (e.g. the Rietdijk–Putnam argument). On the other hand, presentists have rightly argued that the ephemeral nature of the present is self-revealing to any subject of experience. Indeed, how can we explain the feeling of the passage of time if reality is in fact a large geometric “static” structure? While this article does not need to take sides between eternalism and presentism, we will point out that the way we explain the experience of time will in turn diminish the power of presentist arguments based on the temporal character of our experience.
Phenomenal Time: This is the way in which the passing of time feels like. Even drug naïve individuals can relate to the fact that the passage of time feels different depending on one’s state of mind. The felt sense of time depends on one’s level of arousal (deeply asleep, dreaming, tired, relaxed, alert, wide awake, etc.) and hedonic tone (depressed, anxious, joyful, relaxed, etc.). Indeed, time hangs heavy when one is in pain, and seems to run through one’s fingers when one is having a great time. More generally, when taking into account altered states of consciousness (e.g. meditation, yoga, psychedelics) we see that there is a wider range of experiential phenomena than is usually assumed. Indeed, one can see that there are strange generalizations to phenomenal time. Examples of exotic phenomenal temporalities include: tachypsychia (aka. time dilation), time reversal, short-term memory tracers, looping, “moments of eternity“, temporal branching, temporal synchronicities, timelessness, and so on. We suggest that any full account of consciousness ought to be able to explain all of these variants of phenomenal time (among other key features of consciousness).
Key Background Assumptions
We shall work under three key assumptions. First, we have indirect realism about perception. Second, we have mereological nihilism in the context of consciousness, meaning that one’s stream of consciousness is composed of discrete “moments of experience”. And third, Qualia Formalism, a view that states that each moment of experience has a mathematical structure whose features are isomorphic to the features of the experience. Let us unpack these assumptions:
1. Indirect Realism About Perception
This view also goes by the name of representationalism or simulationism (not to be confused with the simulation hypothesis). In this account, perception as a concept is shown to be muddled and confused. We do not really perceive the world per se. Rather, our brains instantiate a world-simulation that tracks fitness-relevant features of our environment. Our sensory apparatus merely selects which specific world-simulation our brain instantiates. In turn, our world-simulations causally covaries with the input our senses receive and the motor responses it elicits. Furthermore, evolutionary selection pressures, in some cases, work against accurate representations of one’s environment (so long as these are not fitness-enhancing). Hence, we could say that our perception of the world is an adaptive illusion more than an accurate depiction of our surroundings.
A great expositor of this view is Steve Lehar. We recommend his book about how psychonautical experience make clear the fact that we inhabit (and in some sense are) a world-simulation created by our brain. Below you can find some pictures from his “Cartoon Epistemology“, which narrates a dialogue between a direct and an indirect realist about perception:
Steve Lehar also points out that the very geometry of our world-simulation is that of a diorama. We evolved to believe that we can experience the world directly, and the geometry of our world-simulation is very well crafted to keep us under the influence of a sort of spell to makes us believe we are the little person watching the diorama. This world-simulation has a geometry that is capable of representing both nearby regions and far-away objects (and even points-at-infinity), and it represents the subject of experience with a self-model at its projective center.
We think that an account of how we experience time is possible under the assumption that experiential time is a structural feature of this world-simulation. In turn, we would argue that implicit direct realism about perception irrevocably confuses physical time and phenomenal time. For if one assumes that one somehow directly perceives the physical world, doesn’t that mean that one also perceives time? But in this case, what to make of exotic time experiences? With indirect realism we realize that we inhabit an inner world-simulation that causally co-varies with features of the environment and hence resolve to find the experience of time within the confines of one’s own skull.
2. Discrete Moments of Experience
A second key assumptions is that experiences are ontologically unitary rather than merely functionally unitary. The philosophy of mind involved in this key assumption is unfortunately rather complex and easy to misunderstand, but we can at least say the following. Intuitively, as long as one is awake an alert, it feels like one’s so-called “stream of consciousness” is an uninterrupted and continuous experience. Indeed, at the limit, some philosophers have even argued that one is a different person each day; subjects of experience are, as it were, delimited by periods of unconsciousness. We instead postulate that the continuity of experience from one moment to the next is an illusion caused be the way experience is constructed. In reality, our brains generate countless “moments of experience” every second, each with its own internal representation of the passage of time and the illusion of a continuous diachronic self.
The precise physical underpinnings of a moment of experience have yet to be discovered, but if monistic physicalism is to survive, it is likely that the (physical) temporal extension that a single moment of experience spans is incredibly thin (possibly no more than 10^-13 seconds). In this article we make no assumptions about the actual physical temporal extension of a moment of experience. All we need to say is that it is “short” (most likely under a millisecond).
It is worth noting that the existence of discrete moments of experience supports an Empty Individualist account of personal identity. That is, a person’s brain works as an experience machine that generates many conscious events every second, each with its own distinct coordinates in physical space-time and unique identity. We would also argue that this ontology may be compatible with Open Individualism, but the argument for this shall be left to a future article.
3. Qualia Formalism
This third key assumption states that the quality of all experiences can be modeled mathematically. More precisely, for any given moment of experience, there exists a mathematical object whose mathematical features are isomorphic the the features of the experience. At the Qualia Research Institute we take this view and run with it to see where it takes us. Which mathematical object can fully account for the myriad structural relationships between experiences is currently unknown. Yet, we think that we do not need to find the One True Mathematical Object in order to make progress in formalizing the structure of subjective experience. In this article we will simply invoke the mathematical object of directed graphs in order to encode the structure of local binding of a given experience. But first, what is “local binding”? I will borrow David Pearce’s explanation of the terms involved:
The “binding problem”, also called the “combination problem”, refers to the mystery of how the micro-experiences mediated by supposedly discrete and distributed neuronal edge-detectors, motion-detectors, shape-detectors, colour-detectors, etc., can be “bound” into unitary experiential objects (“local” binding) apprehended by a unitary experiential self (“global” binding). Neuroelectrode studies using awake, verbally competent human subjects confirm that neuronal micro-experiences exist. Classical neuroscience cannot explain how they could ever be phenomenally bound. As normally posed, the binding problem assumes rather than derives the emergence of classicality.
In other words, “local binding” refers to the way in which the features of our experience seem to be connected and interwoven into complex phenomenal objects. We do not see a chair as merely a disparate set of colors, edges, textures, etc. Rather, we see it as an integrated whole with fine compositional structure. Its colors are “bound” to its edges which are “bound” to its immediate surrounding space and so forth.
A simple toy model for the structure of an experience can be made by saying that there are “simple qualia” such as color and edges, and “complex qualia” formed by the binding of simple qualia. In turn, we can represent an experience as a graph where each node is a simple quale and each edge is a local binding connection. The resulting globally connected graph corresponds to the “globally bound” experience. Each “moment of experience” is, thus, coarsely at any rate, a network.
While this toy model is almost certainly incomplete (indeed some features of experience may require much more sophisticated mathematical objects to be represented properly), it is fair to say that the rough outline of our experience can be represented with a network-like skeleton encoding the local binding connections. More so, as we will see, this model will suffice to account for many of the surprising features of phenomenal time (and its exotic variants).
Each layer is connected itself in a geometric way, and connected to the previous and next layer with directed edges.
While both physical and phenomenal time pose profound philosophical conundrums, it is important to denote that science has made a lot of progress providing formal accounts of physical time. Confusingly, even Einstein’s theory of general relativity is time-symmetric, meaning that the universe would behave the same whether time was moving forwards or backwards. Hence relativity does not provide, on its own, a direction to time. What does provide a direction to time are properties like the entropy gradient (i.e. the direction along which disorder is globally increasing) and, the focus of this article, causality as encoded in the network of statistical conditional independence. This is a mouthful, let us tackle it in more detail.
In Timeless CausalityYudkowsky argues one can tell the direction of causality, (and hence of the arrow of time) by examining how conditioning on events inform us about other events. We recommend reading the linked article for details (and for a formal account read SEP’s entry on the matter).
In the image above we have a schematic representation of two measurables (1 & 2) at several times (L, M, and R). The core idea is that we can determine the flow of causality by examining the patterns of statistical conditional independence, with questions like “if I’ve observed L1 and L2, do I gain information about M1 by learning about M2?” an so on*.
Intriguingly, these models of time and causality are tenseless and hence eternalist. The whole universe works as a unified system in which time appears as an axis rather than a metaphysical universal metronome. But if eternalism is true, how come we can feel the passage of time? If moments of experience exist, how come we seem to experience movement and action? Shouldn’t we experience just a single static “image”, like seeing a single movie frame without being aware of the previous ones? We are now finally ready tackle these questions and explain how time may be encoded in the structure of one’s experience.
In the image above we contrast physical and phenomenal time explicitly. The top layer shows the physical state of a scene in which a ball is moving along a free-falling parabolic trajectory. In turn, a number of these states are aggregated by a process of layering (second row) into a unified “moment of experience”. As seen on the third row, each moment of experience represents the “present scene” as the composition of three slices of sensory input with a time-dependent dimming factor. Namely, the scene experienced is approximated with a weighted sum of three scenes with the most recent one being weighted the highest and the oldest the least.
In other words, at the coarsest level of organization time is encoded by layering the current input scene with faint after-images of very recent input scenes. In healthy people this process is rather subtle yet always present. Indeed, after-images are an omnipresent feature of sensory modalities (beyond sight).
A simple model to describe how after-images are layered on top of each other to generate a scene with temporal depth involves what we call “time-dependent qualia decay functions”. This function determines how quickly sensory (and internal) impressions fade over time. With e.g. psychedelics making this decay function significantly fatter (long-tailed) and stimulants making it slightly shorter (i.e. higher signal-to-noise ratio at the cost of reduced complex image formation).
With this layering process going on, and the Qualia Formalist model of experience as a network of local binding, we can further find a causal structure in experience akin to that in physical time (as explained in Timeless Causality):
Again, each node of the network represents a simple quale and each edge represents a local binding relationship between the nodes it connects. Then, we can describe the time-dependent qualia decay function as the probability that a node or an edge will vanish at each (physical) time step.
The rightmost nodes and edges are the most recent qualia triggered by sensory input. Notice how the nodes and edges vanish probabilistically with each time step, making the old layers sparsely populated.
With a sufficiently large network one would be able to decode the direction of causality (and hence of time) using the same principles of statistical conditional independence used to account for physical time. What we are proposing is that this underlies what time feels like.
Now that we understand what the pseudo-time arrow is, what can we do with it?
Explanatory Power: How the Pseudo-Time Arrow Explains Exotic Phenomenal Time
Let us use this explanatory framework on exotic experiences of time. That is, let us see how the network of local binding and its associated pseudo-time arrows can explain unusual experiences of time perception.
To start we should address the fact that tachypsychia (i.e. time dilation) could either mean (a) that “one experiences time passing at the same rate but that this rate moves at a different speed relative to the way clocks tick compared to typical perception” or, more intriguingly, (b) that “time itself feels slower, stretched, elongated, etc.”.
The former (a) is very easy to explain, while the latter requires more work. Namely, time dilation of the former variety can be explained by an accelerated or slowed down sensory sampling rate in such a way that the (physical) temporal interval between each layer is either longer or shorter than usual. In this case the structure of the network does not change; what is different is how it maps to physical time. If one were on a sensory deprivation chamber and this type of time dilation was going on one would not be able to say so since the quality of phenomenal time (as encoded in the network of local binding) remains the same as before. Perhaps compare how it feels like to see a movie in slow-motion relative to seeing it at its original speed while being perfectly sober. Since one is sober either way, what changes is how quickly the world seems to move, not how one feels inside.
The latter (b) is a lot more interesting. In particular, phenomenal time is often incredibly distorted when taking psychedelics in a way that is noticeable even in sensory deprivation chambers. In other words, it is the internal experience of the passage of time that changes rather than the layering rate relative to the external world. So how can we explain that kind of phenomenal time dilation?
The most straightforward effect of psychedelics one can point out with regards to the structure of one’s experience is the fact that qualia seems to last for much longer than usual. This manifests as “tracers” in all sensory modalities. Using the vocabulary introduced above, we would say that psychedelics change the time-dependent qualia decay function by making it significantly “fatter”. While in sober conditions the positive after-image of a lamp will last between 0.2 and 1 second, on psychedelics it will last anywhere between 2 and 15 seconds. This results in a much more pronounced and perceptible change in the layering process of experience. Using Lehar’s diorama model of phenomenal space, we could represent various degrees of psychedelic intoxication with the following progression:
Strong dose (overwhelming layering/confusion between layers)
The first image is what one experiences while sober. The second is what one experiences if one takes, e.g. 10 micrograms of LSD (i.e. microdosing), where there is a very faint additional layer but is at times indistinguishable from sober states. The third, fourth, and fifth image represent what tracers may feel like on ~50, ~150, and ~300 micrograms of LSD, respectively. The last image is perhaps most reminiscent of DMT experiences, which provide a uniquely powerful and intense high-frequency layering at the onset of the trip.
In the graphical model of time we could say that the structure of the network changes by (1) a lower probability for each node to vanish in each (physical) time step, and (2) an even lower probability for each edge to vanish after each (physical) time step. The tracers experienced on psychedelics are more than just a layering process; the density of connections also increases. That is to say, while simple qualia lasts for longer, the connections between them are even longer-lasting. The inter-connectivity of experience is enhanced.
A low dose of a psychedelic will lead to a slow decay of simple qualia (colors, edges, etc.) and an even slower decay of connections (local binding), resulting in an elongated and densified pseudo-time arrow.
This explains why time seems to move much more slowly on psychedelics. Namely, each moment of experience has significantly more temporal depth than a corresponding sober state. To illustrate this point, here is a first-person account of this effect:
A high dose of LSD seems to distort time for me the worst… maybe in part because it simply lasts so long. At the end of an LSD trip when i’m thinking back on everything that happened my memories of the trip feel ancient.
When you’re experiencing the trip it’s possible to feel time slowing down, but more commonly for me I get this feeling when I think back on things i’ve done that day. Like “woah, remember when I was doing this. That feels like it was an eternity ago” when in reality it’s been an hour.
On low doses of psychedelics, phenomenal time may seem to acquire a sort of high definition unusual for sober states. The incredible (and accurate) visual acuity of threshold DMT experiences is a testament to this effect, and it exemplifies what a densified pseudo-time arrow feels like:
Just as small doses of DMT enhance the definition of spatial structures, so is the pseudo-time arrow made more regular and detailed, leading to a strange but compelling feeling of “HD vision”.
But this is not all. Psychedelics, in higher doses, can lead to much more savage and surrealistic changes to the pseudo-time arrow. Let us tackle a few of the more exotic variants with this explanatory framework:
This effect feels like being stuck in a perfectly-repeating sequence of events outside of the universe in some kind of Platonic closed timelike curve. People often accidentally induce this effect by conducting repetitive tasks or listening to repetitive sounds (which ultimately entrain this pattern). For most people this is a very unsettling experience since it produces a pronounce feeling of helplessness due to making you feel powerless about ever escaping the loop.
In terms of the causal network, this experience could be accounted for with a loop in the pseudo-time arrow of experience:
High Dose LSD can lead to annealing and perfect “standing temporal waves” often described as “time looping” or “infinite time”
Moments of Eternity
Subjectively, so-called “Moments of Eternity” are extremely bizarre experiences that have the quality of being self-sustaining and unconditioned. It is often described in mystical terms, such as “it feels like one is connected to the eternal light of consciousness with no past and no future direction”. Whereas time loops lack some of the common features of phenomenal time such as a vanishing past, moments of eternity are even more alien as they also lack a general direction for the pseudo-time arrow.
High Dose LSD may also generate a pseudo-time arrow with a central source and sink to that connects all nodes.
Both time loops and moments of eternity arise from the confluence of a slower time-dependent qualia decay function and structural annealing (which is typical of feedback). As covered in previous posts, as depicted in numerous psychedelic replications, and as documented in PsychonautWiki, one of the core effects of psychedelics is to lower the symmetry detection threshold. Visually, this leads to the perception of wallpaper symmetry groups covering textures (e.g. grass, walls, etc.). But this effect is much more general than mere visual repetition; it generalizes to the pseudo-time arrow! The texture repetition via mirroring, gyrations, glides, etc. works indiscriminately across (phenomenal) time and space. As an example of this, consider the psychedelic replication gifs below and how the last one nearly achieves a standing-wave structure. On a sufficient dose, this can anneal into a space-time crystal, which may have “time looping” and/or “moment of eternity” features.
As discussed in a previous post, a number of people report temporal branching on high doses of psychedelics. The reported experience can be described as simultaneously perceiving multiple possible outcomes of a given event, and its branching causal implications. If you flip a coin, you see it both coming up heads and tails in different timelines, and both of these timelines become superimposed in your perceptual field. This experience is particularly unsettling if one interprets it through the lens of direct realism about perception. Here one imagines that the timelines are real, and that one is truly caught between branches of the multiverse. Which one is really yours? Which one will you collapse into? Eventually one finds oneself in one or another timeline with the alternatives having been pruned. An indirect realist about perception has an easier time dealing with this experience as she can interpret it as the explicit rendering of one’s predictions about the future in such a way that they interfere with one’s incoming sensory stimuli. But just in case, in the linked post we developed an empirically testable predictions from the wild possibility (i.e. where you literally experience information from adjacent branches of the multiverse) and tested it using quantum random number generators (and, thankfully for our collective sanity, obtained null results).
High Dose LSD Pseudo-Time Arrow Branching, as described in trip reports where people seem to experience “multiple branches of the multiverse at once.”
Finally, in some situations people report the complete loss of a perceived time arrow but not due to time loops, moments of eternity, or branching, but rather, due to scrambling. This is less common on psychedelics than the previous kinds of exotic phenomenal time, but it still happens, and is often very disorienting and unpleasant (an “LSD experience failure mode” so to speak). It is likely that this also happens on anti-psychotics and quite possibly with some anti-depressants, which seem to destroy unpleasant states by scrambling the network of local binding (rather than annealing it, as with most euphoric drugs).
Loss of the Pseudo-Time Arrow (bad trips? highly scrambled states caused by anti-psychotics?)
In summary, this framework can tackle some of the weirdest and most exotic experiences of time. It renders subjective time legible to formal systems. And although it relies on an unrealistically simple formalism for the mathematical structure of consciousness, the traction we are getting is strong enough to make this approach a promising starting point for future developments in philosophy of time perception.
We will now conclude with a few final thoughts…
Intriguingly, with compounds such as DMT, the layering process is so fast that on doses above the threshold level one very quickly loses track of the individual layers. In turn, one’s mind attempts to bind together the incoming layers, which leads to attempts of stitching together multiple layers in a small (phenomenal) space. This confusion between layers compounded with a high density of edges is the way we explained the unusual geometric features of DMT hallucinations, such as the spatial hyperbolic symmetry groups expressed in its characteristic visual texture repetition (cf. eli5). One’s mind tries to deal with multiple copies of e.g. the wall in front, and the simplest way to do so is to stitch them together in a woven Chrysanthemum pattern with hyperbolic wrinkles.
Of special interest to us is the fact that both moments of eternity and time loops tend to be experienced with very intense emotions. One could imagine that finding oneself in such an altered state is itself bewildering and therefore stunning. But there are many profoundly altered states of consciousness that lack a corresponding emotional depth. Rather, we think that this falls out of the very nature of valence and the way it is related to the structure of one’s experience.
In particular, the symmetry theory of valence (STV) we are developing at the Qualia Research Institute posits that the pleasure-pain axis is a function of the symmetry (and anti-symmetry) of the mathematical object whose features are isomorphic to an experience’s phenomenology. In the case of the simplified toy model of consciousness based on the network of local binding connections, this symmetry may manifest in the form of regularity within and across layers. Both in time loops and moments of eternity we see a much more pronounced level of symmetry of this sort than in the sober pseudo-time arrow structure. Likewise, symmetry along the pseudo-time arrow may explain the high levels of positive valence associated with music, yoga, orgasm, and concentration meditation. Each of these activities would seem to lead to repeating standing waves along the pseudo-time arrow, and hence, highly valence states. Futurework shall aim to test this correspondence empirically.
The Qualia Research Institute Logo (timeless, as you can see)
Suppose that we do know L1 and L2, but we do not know R1 and R2. Will learning M1 tell us anything about M2? […]
The answer, on the assumption that causality flows to the right, and on the other assumptions previously given, is no. “On each round, the past values of 1 and 2 probabilistically generate the future value of 1, and then separately probabilistically generate the future value of 2.” So once we have L1 and L2, they generate M1 independently of how they generate M2.
But if we did know R1 or R2, then, on the assumptions, learning M1 would give us information about M2. […]
Similarly, if we didn’t know L1 or L2, then M1 should give us information about M2, because from the effect M1 we can infer the state of its causes L1 and L2, and thence the effect of L1/L2 on M2.
Thanks to: Mike Johnson, David Pearce, Romeo Stevens, Justin Shovelain, Andrés Silva Ruiz, Liam Brereton, and Enrique Bojorquez for their thoughts about phenomenal time and its possible mathematical underpinnings.
Burning Man is one week away, so I figured I would share a neat idea I’ve been hoarding that could lead to a kick-ass Burning Man-style psychedelic art installation. If I have the time and resources to do so, I may even try to manifest this idea in real life at some point.
Around the time I was writing The Hyperbolic Geometry of DMT Experiences (cf. Eli5) I began asking myself how to help people develop a feel for what it is like to inhabit non-Euclidean phenomenal spaces. I later found out that Henry Segerman developed an immersive VR experience in which you can explore 3D hyperbolic spaces. That is fantastic, and a great step in the right direction. But I wanted to see if there was any way for us to experience 3D hyperbolic geometry in a material way without the aid of computers. Something that you could hold in your hand, like a sort of mystical amulet that works as a reminder of the vastness of the state-space of consciousness.
What I had in mind was along the lines of how we can, in a sense, visualize infinite (Euclidean) space using two parallel mirrors. I thought that maybe there could be a way to do the same but in a way that visualizes a hyperbolic space.
One-Way Mirrors and 3D Space-Filling Shapes
Right now you can use one-way mirrors on the sides of a polyhedra whose edges are embedded with LEDs to create a fascinating “infinite space effect”:
This is not the case in hyperbolic space, though; arbitrary regular polyhedra can tesselate 3D hyperbolic spaces. For instance, one can use dodecahedra by choosing their size appropriately in such a way that they all have 90 degree angle corners (cf. Not Knot):
Perhaps, I thought to myself, there is a way to physically realize hyperbolic curvature and enable us to see what it is like to live in a place in which dodecahedra tesselate space. I kept thinking about this problem, and one day while riding the BART and introspecting on the geometry of sound, I realized that one could use gradient-index optics to create a solid in which light-paths behave as if the space was hyperbolic.
Gradient-index optics is the subfield of optics that specializes in the use of materials that have a smooth non-constant refractive index. One way to achieve this is to blend two transparent materials (e.g. two kinds of plastic) in such a way that the concentration of each type varies smoothly from one region to the next. As a consequence, light travels in unusual and bendy ways, like this:
Monochrome Gradient-Index Refraction
Monochrome Gradient-Index Refraction
Materializing Hyperbolic Spaces
By carefully selecting various transparent plastics with different indices of refraction and blending them in a 3D printer in precisely the right proportions, one can in principle build solids in which the gradient-index properties of the end product instantiate a hyperbolic metric. If one were to place the material with the lowest refraction index at the very center in a dodecahedron and add materials of increasingly larger refractive indices all the way up to the corners, then the final effect could be one in which the dodecahedron has an interior in which light moves as if it were in a hyperbolic space. One can then place LED strips along the edges and seal the sides with one-way window film. Lo-and-behold, one would then quite literally be able to “hold infinity in the palm of your hand”:
I think that this sort of gadget would allow us to develop better intuitions for what the far-out (experiential) spaces people “visit” on psychedelics look like. One can then, in addition, generalize this to make space behave as if its 3D curvature was non-constant. One might even, perhaps, be able to visualize a black-hole by emulating its event-horizon using a region with extremely large refractive index.
I would like to conclude by considering some of the challenges that we would face trying to construct this. For instance, finding the right materials may be difficult because they would need to have a wide range of refractive indices, all be similarly transparent, able to smoothly blend with each other, and have low melting points. I am not a material scientist, but my gut feeling is that this is not currently impossible. Modern gradient-index optics already has a rather impressive level of precision.
Another challenge comes from the resolution of the 3D printer. Modern 3D printers have layers with a thickness between .2 to 0.025mm. It’s possible that this is simply not small enough to avoid visible discontinuities in the light-paths. At least in principle this could be surmounted by melting the last layer placed such that the new layer smoothly diffuses and partially blends with it in accordance with the desired hyperbolic metric.
An important caveat is that the medium in which we live (i.e. air at atmospheric pressure) is not very dense to begin with. In the example of the dodecahedra, this may represent a problem considering that the corners need to form 90 degree angles from the point of view of an outside observer. This would imply that the surrounding medium needs to have a higher refraction index than that of the transparent medium at the corners. This could be fixed by immersing the object in water or some other dense media (and designing it under the assumption of being surrounded by such a medium). Alternatively, one can simply fix the problem by using appropriately curved sides in lieu of straight planes. This may not be as aesthetically appealing, though, so it may pay off to brainstorm other clever approaches to deal with this that I haven’t thought of.
Above all, perhaps the most difficult challenge would be that of dealing with the inevitable presence of chromatic aberrations:
Narrow-Spectrum Gradient-Index Refraction
Broad-Spectrum Gradient-Index Refraction
Since the degree to which a light-path bends in a medium depends on its frequency, how bendy light looks like with gradient-index optics is variable. If the LEDs placed at the edges of the polyhedra are white, we could expect very visible distortions and crazy rainbow patterns to emerge. This would perhaps be for the better when taken for its aesthetic value. But since the desired effect is one of actually materializing faithfully the behavior of light in hyperbolic space, this would be undesirable. The easiest way to deal with this problem would be to show the gadget in a darkened room and have only monochrome LEDs on the edges of the polyhedra whose frequency is tuned to the refractive gradient for which the metric is hyperbolic. More fancifully, it might be possible to overcome chromatic aberrations with the use of metamaterials (cf. “Metasurfaces enable improved optical lens performance“). Alas, my bedtime is approaching so I shall leave the nuts and bolts of this engineering challenge as an exercise for the reader…
This time David Chalmers brought the Meta-problem of Consciousness into the overall conversation by making a presentation about his paper on the topic. I think that this was a great addition to the conference, and it played beautifully as a tone-setter.
“The meta-problem of consciousness is (to a first approximation) the problem of explaining why we think that there is a problem of consciousness.”
And of all of his works, I would argue, discussing the meta-problem of consciousness is perhaps one of the things that will help advance the field of consciousness research the most. In brief, we are in sore need of an agreed-upon explanation for the reasons why consciousness poses a problem at all. Rather than getting caught up in unfruitful arguments at the top of the argumentative tree, it is helpful to sometimes be directed to look at the roots of people’s divergent intuitions. This tends to highlight unexpected differences in people’s philosophical background assumptions.
And the fact that these background assumptions are often not specified leads to problems. For example: talking past each other due to differences in terminology, people attacking a chain of reasoning when in fact their disagreement starts at the level of ontology, and failure to recognize and map useful argumentative isomorphisms from one ontology onto another.
Having the Meta-Problem of Consciousness at the forefront of the discussions, in my appraisal of the event, turned out to be very generative. Asking an epiphenomenalist, an eliminativist, a panprotopsychist, etc. to explain why they think their view is true seemed less helpful in advancing the state of our collective knowledge than asking them about their thoughts on the Meta-Problem of Consciousness.
(2) Qualia Formalism in the Water Supply
At the Qualia Research Institute we explicitly assume that consciousness is not only real, but that it is formalizable. This is not a high-level claim about the fact that we can come up with a precise vocabulary to talk about consciousness. It is a radical take on the degree to which formal mathematical models of experience can be discovered. Qualia Formalism, as we define it, is the claim that for any conscious experience, there exists a mathematical object whose properties are isomorphic to the phenomenology of that experience. Anti-formalists, on the other hand, might say that consciousness is an improper reification.
For formalists, consciousness is akin to electromagnetism: we started out with a series of peculiar disparate phenomena such as lightning, electricity, magnets, static-electricity, etc. After a lot of work, it turned out that all of these diverse phenomena had a crisp unifying mathematical underpinning. More so, this formalism was not merely descriptive. Light, among other phenomena, were hidden in it. That is, finding a mathematical formalism for real phenomena can be generalizable to even more domains, be strongly informative for ontology, and ultimately, also technologically generative (the computer you are using to read this article wouldn’t- and in fact couldn’t -exist if electromagnetism wasn’t formalizable).
For anti-formalists, consciousness is akin to Élan vital. People had formed the incorrect impression that explaining life necessitated a new ontology. That life was, in some sense, (much) more than just the sum of life-less forces in complex arrangements. And in order to account for the diverse (apparently unphysical) behaviors of life, we needed a life force. Yet no matter how hard biologists, chemists, and physicists have tried to look for it, no life force has been found. As of 2018 it is widely agreed by scientists that life can be reduced to complex biochemical interactions. In the same vein, anti-formalists about consciousness would argue that people are making a category error when they try to explain consciousness itself. Consciousness will go the same way as Élan vital: it will turn out to be an improper reification.
In particular, the new concept-handle on the block to refer to anti-formalist views of consciousness is “illusionism”. Chalmers writes on The Meta-Problem of Consciousness:
This strategy [of talking about the meta-problem] typically involves what Keith Frankish has called illusionism about consciousness: the view that consciousness is or involves a sort of introspective illusion. Frankish calls the problem of explaining the illusion of consciousness the illusion problem. The illusion problem is a close relative of the meta-problem: it is the version of the meta-problem that arises if one adds the thesis that consciousness is an illusion. Illusionists (who include philosophers such as Daniel Dennett, Frankish, and Derk Pereboom, and scientists such as Michael Graziano and Nicholas Humphrey) typically hold that a solution to the meta-problem will itself solve or dissolve the hard problem.
In the broader academic domain, it seems that most scientists and philosophers are neither explicitly formalists nor anti-formalists. The problem is, this question has not been widely discussed. We at QRI believe that there is a fork in the road ahead of us. That while both formalist and anti-formalist views are defensible, there is very little room in-between for coherent theories of consciousness. The problem of whether qualia formalism is correct or not is what Michael Johnson has coined as TheReal Problem of Consciousness. Solving it would lead to radical improvements in our understanding of consciousness.
What a hypothetical eliminativist about consciousness would say to my colleague Michael Johnson in response to the question – “so you think consciousness is just a bag of tricks?”: No, consciousness is not a bag of tricks. It’s an illusion, Michael. A trick is what a Convolutional Neural Network needs to do to perform well on a text classification task. The illusion of consciousness is the radical ontological obfuscation that your brain performs in order to render its internal attentional dynamics as a helpful user-interface that even a kid can utilize for thinking.
Now, largely thanks to the fact that Integrated Information Theory (IIT) is being discussed openly, qualia formalism is (implicitly) starting to have its turn on the table. While we believe that IIT does not work out as a complete account of consciousness for a variety of reasons (our full critique of it is certainly over-due), we do strongly agree with its formalist take on consciousness. In fact, IIT might be the only mainstream theory of consciousness that assumes anything resembling qualia formalism. So its introduction into the water supply (so to speak) has given a lot of people the chance to ponder whether consciousness has a formal structure.
(3) Great New Psychedelic Research
The conference featured the amazing research of Robin Carhart-Harris, Anil K. Seth, and Selen Atasoy, all of whom are advancing the frontier of consciousness research by virtue of collecting new data, generating computational models to explain it, and developing big-picture accounts of psychedelic action. We’ve already featured Atasoy’s work in here. Her method of decomposing brain activity into harmonics is perhaps one of the most promising avenues for advancing qualia formalist accounts of consciousness (i.e. tentative data-structures in which the information about a given conscious state is encoded). Robin’s entropic brain theory is, we believe, a really good step in the right direction, and we hope to formalize how valence enters the picture in the future (especially as it pertains to being able to explain qualia annealingon psychedelic states). Finally, Anil is steel-manning the case for predictive coding’s role in psychedelic action, and, intriguingly, also advancing the field by trying to find out in exactly what ways the effects of psychedelics can be simulated with VR and strobe lights (cf. Algorithmic Reduction of Psychedelic States, and Getting Closer to Digital LSD).
(4) Superb Aesthetic
The Science of Consciousness brings together a group of people with eclectic takes on reality, extremely high Openness to Experience, uncompromising curiosity about consciousness, and wide-ranging academic backgrounds, and this results in an amazing aesthetic. In 2016 the underlying tone was set by Dorian Electra and Baba Brinkman, who contributed with consciousness-focused music and witty comedy (we need more of that kind of thing in the world). Dorian Electra even released an album titled “Magical Consciousness Conference” which discusses in a musical format classical topics of philosophy of mind such as: the mind-body problem, brains in vats, and the Chinese Room.
The Science of Consciousness conference carries a timeless aesthetic that is hard to describe. If I were forced to put a label on it, I would say it is qualia-aware paranormal-adjacentpsychedelicmeta-cognitivefuturism, or something along those lines. For instance, see how you can spot philosophers of all ages vigorously dancing to the empiricists vs. rationalists song by Dorian Electra (featuring David Chalmers) at The End of Consciousness Party in this video. Yes, that’s the vibe of this conference. The conference also has a Poetry Slam on Friday in which people read poems about qualia, the binding problem, and psychedelics (this year I performed a philosophy of mind stand-up comedy sketch there). They also play the Zombie Blues that night, in which people take turns to sing about philosophical zombies. Here are some of Chalmers’ verses:
I act like you act
I do what you do
But I don’t know
What it’s like to be you
What consciousness is!
I ain’t got a clue
I got the Zombie Blues!!!
I asked Tononi:
“How conscious am I?”
He said “Let’s see…”
“I’ll measure your Phi”
He said “Oh Dear!”
“It’s zero for you!”
And that’s why you’ve got the Zombie Blues!!!
Noteworthy too is the presence of after-parties that end at 3AM, the liberal attitude on cannabis, and the crazy DMT art featured in the lobby. Here are some pictures we took late at night borrowing some awesome signs we found at a Quantum Healing stand.
Panpsychism Made Practical
No Zombies Allowed: Human or Zombie? Get Tested Here
(5) We found a number of QRI allies and supporters
Finally, we were very pleased to find that Qualia Computing readers and QRI supporters attended the conference. We also made some good new friends along the way, and on the whole we judged the conference to be very much worth our time. For example, we were happy to meet Link Swanson, who recently published his article titled Unifying Theories of Psychedelic Drug Effects. I in fact had read this article a week before the event and thought it was great. I was planning on emailing him after the conference, and I was pleasantly surprised to meet him in person there instead. If you met us at the conference, thanks for coming up and saying hi! Also, thank you to all who organized or ran the conference, and to all who attended it!
QRI members, friends, and allies
What I Would Like to See More Of
(1) Qualia Formalism
We hope and anticipate that in future years the field of consciousness research will experience an interesting process in which theory proponents will come out as either formalists or anti-formalists. In the meantime, we would love to see more people at least taking seriously the vision of qualia formalism. One of the things we asked ourselves during the conference was: “Where can we find other formalists?”. Perhaps the best heuristic we explored was the simple strategy of going to the most relevant concurrent sessions (e.g. physics and consciousness, and fundamental theories of consciousness). Interestingly, the people who had more formalist intuitions also tended to take IIT seriously.
(2) Explicit Talk About Valence (and Reducing Suffering)
To our knowledge, our talks were the only ones in the event that directly addressed valence (i.e. the pleasure-pain axis). I wish there were more, given the paramount importance of affect in the brain’s computational processing, its role in culture, and of course, its ethical relevance. What is the point of meaning and intelligence if one cannot be happy?
There was one worthy exception: at some point Stuart Hameroff briefly mentioned his theory about the origin of life. He traces the evolutionary lineage of life to molecular micro-environmental system in which “quantum events [are] shielded from random, polar interactions, enabling more intense and pleasurable [Objective Reduction] qualia. ” In his view, pleasure-potential maximization is at the core of the design of the nervous system. I am intrigued by this theory, and I am glad that valence enters the picture here. I would just want to extend this kind of work to include the role of suffering as well. It seems to me that the brain evolved an adaptive range of valence that sinks deep into the negative, and is certainly not just optimizing for pleasure. While our post-human descendants might enjoy information-sensitive gradients of bliss, us Darwinians have been “gifted” by evolution a mixture of negative and positive hedonic qualia.
Related to (2), we think that one of the most important barriers for making progress in valence research is the fact that most people (even neuroscientists and philosophers of mind) think of it as a very personal thing with no underlying reality beyond hearsay or opinion. Some people like ice-cream, some like salads. Some people like Pink Floyd, others like Katy Perry. So why should we think that there is a unifying equation for bliss? Well, in our view, nobody actually likes ice-cream or Pink Floyd. Rather, ice-cream and Pink Floyd trigger high-valence states, and it is the high valence states that are actually liked and valuable. Our minds are constructed in such a way that we project pleasure and pain out into the world and think of them as necessarily connected to the external state of affairs. But this, we argue, is indeed an illusion (unlike qualia, which is as real as it gets).
Even the people in the Artificial Intelligence and Machine Consciousness plenary panel seemed subject to the Tyranny of the Intentional Object. During the Q&A section I asked them: “if you were given a billion dollars to build a brain or machine that could experience super-happiness, how would you go about doing so?” Their response was that happiness/bliss only makes sense in relational terms (i.e. by interacting with others in the real world). Someone even said that “dopamine in the brain is just superficial happiness… authentic happiness requires you to gain meaning from what you do in the world.” This is a common view to take, but I would also point out that if it is possible to generate valence in artificial minds without human interactions, generating high valence could be done more directly. Finding methods to modulate valence would be done more efficiently by seeking out foundational qualia formalist accounts of valence.
(4) Bigger Role for the Combination Problem
The number of people who account for the binding problem (also called the combination or boundary problem) is vanishingly small. How and why consciousness appears as unitary is a deep philosophical problem that cannot be dismissed with simple appeals to illusionism or implicit information processing. In general, my sense has been that many neuroscientists, computer scientists, and philosophers of mind don’t spend much time thinking about the binding problem. I have planned an article that will go in depth about why it might be that people don’t take this problem more seriously. As David Pearce has eloquently argued, any scientific theory of consciousness has to explain the binding problem. Nowadays, almost no one addresses it (and much less compellingly provides any plausible solution to it). The conference did have one concurrent session called “Panpsychism and the Combination Problem” (which I couldn’t attend), and a few more people I interacted with seemed to care about it, but the proportion was very small.
(5) Bumping-up the Effect Size of Psi Phenomena (if they are real)
There is a significant amount of interest in Psi (parapsychology) from people attending this conference. I myself am agnostic about the matter. The Institute of Noetic Science (IONS) conducts interesting research in this area, and there are some studies that argue that publication bias cannot explain the effects observed. I am not convinced that other explanations have been ruled out, but I am sympathetic to people who try to study weird phenomena within a serious scientific framework (as you might tell from this article). What puzzles me is why there aren’t more people advocating for increasing the effect size of these effects in order to study them. Some data suggests that Psi (in the form of telepathy) is stronger with twins, meditators, people on psychedelics, and people who believe in Psi. But even then the effect sizes reported are tiny. Why not go all-in and try to max out the effect size by combining these features? I.e. why not conduct studies with twins who claim to have had psychic experiences, who meditate a lot, and who can handle high doses of LSD and ketamine in sensory deprivation tanks? If we could bump up the effect sizes far enough, maybe we could definitively settle the matter.
(6) And why not… also a lab component?
Finally, I think that trip reports by philosophically-literate cognitive scientists are much more valuable than trip reports by the average Joe. I would love to see a practical component to the conference someday. The sort of thing that would lead to publications like: “The Phenomenology of Candy-Flipping: An Empirical First-Person Investigation with Philosophers of Mind at a Consciousness Conference.”
The Cards and Deck Types of Consciousness Theories
To make the analogy between Magic decks and theories of consciousness, we need to find a suitable interpretation for a card. In this case, I would posit that cards can be interpreted as either background assumptions, required criteria, emphasized empirical findings, and interpretations of phenomena. Let’s call these, generally, components of a theory.
Like we see in Magic, we will also find that some components support each other while others interact neutrally or mutually exclude each other. For example, if one’s theory of consciousness explicitly rejects the notion that quantum mechanics influences consciousness, then it is irrelevant whether one also postulates that the Copenhagen interpretation of quantum mechanics is correct. On the other hand, if one identifies the locus of consciousness to be in the microtubules inside pyramidal cells, then the particular interpretation of quantum mechanics one has is of paramount importance.
Consciousness as the Result of Action-Oriented Cognition (not explicitly named)
Higher Order Thought Theory (HOT)
So how has the meta-game changed since then? Based on the plenary presentations, the concurrent sessions, the workshops, the posters, and my conversations with many of the participants, I’d say (without much objective proof) that the new meta-game now looks more or less like this:
Orchestrated Objective Reduction (Orch OR)
Integrated Information Theory (IIT)
Entropic Brain Theory (EBT)
Global Neuronal Workspace Theory (GNWS)
Prediction Error Minimization (PEM)
Panprotopsychist as a General Framework
Harmonic-Resonant Theories of Consciousness
It seems that Higher Order Thought (HOT) theories of consciousness have fallen out of favor. Additionally, we have a new contender on the table: Harmonic-Resonant Theories of Consciousness is now slowly climbing up the list (which, it turns out, had already been in the water supply since 2006 when Steven Lehar attended the conference, but only now is gathering popular support).
Given the general telos of the conference, it is not surprising that deflationary theories of consciousness do not seem to have a strong representation. I found a few people here and there who would identify as illusionists, but there were not enough to deserve their place in a short-list of dominant deck types. I assume it would be rather unpleasant for people with this general view about consciousness to hang out with so many consciousness realists.
A good number of people I talked to admitted that they didn’t understand IIT, but that they nonetheless felt that something along the lines of irreducible causality was probably a big part of the explanation for consciousness. In contrast, we also saw a few interesting reactions to IIT – some people said “I hate IIT” and “don’t get me started on IIT”. It is unclear what is causing such reactions, but they are worth noting. Is this an allergic reaction to qualia formalism? We don’t have enough information at the moment to know.
The spiritual side of consciousness research is liable to overfocus on ethics and mood hacks rather than on truth-seeking. The problem is that a lot of people have emotionally load-bearing beliefs and points of view connected to how they see reality’s big plot. This is a generalized phenomenon, but its highest expression is found within spiritually-focused thinkers. Many of them come across as evangelizers rather than philosophers, scientists, explorers, or educators. For example: two years ago, David Pearce and I had an uncomfortable conversation with a lady who had a very negative reaction to Pearce’s take on suffering (i.e. that we should use biotechnology to eradicate it). She insisted suffering was part of life and that bliss can’t exist without it (a common argument for sure, but the problem was the intense emotional reaction and insistence on continuing the conversation until we had changed our minds).
We learned our lesson – if you suspect that a person has emotionally load-bearing beliefs about a grand plan or big spiritual telos, don’t mention you are trying to reduce suffering with biotechnology. It’s a gamble, and the chance for a pleasant interaction and meaningful exchange of ideas is not worth the risk of interpersonal friction, time investment, and the pointlessness of a potential ensuing heated discussion.
This brings me to an important matter…
Who are the people who are providing genuinely new contributions to the conversation?
There is a lot of noise in the field of consciousness research. Understandably, a lot of people react to this state of affairs with generalized skepticism (and even cynicism). In my experience, if you approach a neuroscientist in order to discuss consciousness, she will usually choose to simply listen to her priors rather than to you (no matter how philosophically rigorous and scientifically literate you may be).
And yet, at this conference and many other places, there are indeed a lot of people who have something new and valuable to contribute to our understanding of consciousness. So who are they? What allows a person to make a novel contribution?
I would suggest that people who fall into one of the following four categories have a higher chance of this:
People who have new information
Highly creative people with broad knowledge of the field
New paradigm proposers
For (1): This can take one of three forms: (a) New information about phenomenology (i.e. rational psychonauts with strong interpretation and synthesis skills). (b) New third-person data (i.e. as provided by scientists who conduct new research on e.g. neuroimaging). And (c) new information on how to map third-person data to phenomenology, especially about rare states of consciousness (i.e. as obtained from people who have both access to third-person data sources and excellent experienced phenomenologists). (a) Is very hard to come by because most psychonauts and meditators fall for one or more traps (e.g. believing in the tyranny of the intentional object, being direct realists, being dogmatic about a given pre-scientific metaphysic, etc.). (b) Is constrained by the number of labs and the current Kuhnian paradigms within which they work. And (c) is not only rare, but currently nonexistent. Hence, there are necessarily few people who can contribute to the broader conversation about consciousness by bringing new information to the table.
For (2): Great synthesizers are hard to come by. They do not need to generate new paradigms or have new information. What they have is the key ability to find what the novel contribution in a given proposal is. They gather what is similar and different across paradigms, and make effective lossless compressions – saving us all valuable time, reducing confusion, and facilitating the cross-pollination between various disciplines and paradigms. This requires the ability to extract what matters from large volumes of extremely detailed and paradigm-specific literature. Hence, it is also rare to find great synthesizers.
For (3): Being able to pose new questions, and generate weird but not random hypotheses can often be very useful. Likewise, being able to think of completely outrageous outside-the-box views might be key for advancing our understanding of consciousness. That said, non-philosophers tend to underestimate just how weird an observation about consciousness needs to be for it to be new. This in practice constrains the range of people able to contribute in this way to people who are themselves fairly well acquainted with a broad range of theories of consciousness. That said, I suspect that this could be remedied by forming groups of people who bring different talents to the table. In Peaceful Qualia I discussed a potential empirical approach for investigating consciousness which involves having people who specialize in various aspects of the problem (e.g. being great psychonauts, excellent third-person experimentalists, high-quality synthesizers, solid computational modelers, and so on). But until then, I do not anticipate much progress will come from people who are simply very smart and creative – they also need to have either privileged information (such as what you get from combining weird drugs and brain-computer interfaces), or be very knowledgeable about what is going on in the field.
And (4): This is the most difficult and rarest of all, for it requires some degree of the previous three attributes. Their work wouldn’t be possible without the work of many other people in the previous three categories. Yet, of course, they will be the most world-changing of them all. Explicitly, this is the role that we are aiming for at the Qualia Research Institute.
In addition to the above, there are other ways of making highly valuable contributions to the conversation. An example would be those individuals who have become living expressions of current theories of consciousness. That is, people who have deeply understood some paradigm and can propose paradigm-consistent explanations for completely new evidence. E.g. people who can quickly figure out “what would Tononi say about X?” no matter how weird X is. It is my view that one can learn a lot from people in this category. That said… don’t ever expect to change their minds!
A Final Suggestion: Philosophical Speed Dating
To conclude, I would like to make a suggestion in order to increase the value of this and similar conferences: philosophical speed dating. This might be valuable for two reasons. First, I think that a large percentage of people who attend TSC are craving interactions with others who also wonder about consciousness. After all, being intrigued and fascinated by this topic is not very common. Casual interest? Sure. But obsessive curiosity? Pretty uncommon. And most people who attend TCS are in the latter category. At the same time, it is never very pleasant to interact with people who are likely to simply not understand where you are coming from. The diversity of views is so large that finding a person with whom you can have a cogent and fruitful conversation is quite difficult for a lot of people. A Philosophical Speed Dating session in which people quickly state things like their interest in consciousness, take on qualia, preferred approaches, favorite authors, paradigm affinities, etc. would allow philosophical kindred souls to meet at a much higher rate.
And second, in the context of advancing the collective conversation about consciousness, I have found that having people who know where you are coming from (and either share or understand your background assumptions) is the best way to go. The best conversations I’ve had with people usually arise when we have a strong base of shared knowledge and intuitions, but disagree on one or two key points we can identify and meaningfully address. Thus a Philosophical Speed Dating session could lead to valuable collaborations.
And with that, I would like to say: If you do find our approach interesting or worth pursuing, do get in touch.
Till next time, Tucson!
* In Chalmer’s paper about the Meta-Problem of Consciousness he describes his reason for investigating the subject: “Upon hearing about this article, some people have wondered whether I am converting to illusionism, while others have suspected that I am trying to subvert the illusionist program for opposing purposes. Neither reaction is quite correct. I am really interested in the meta-problem as a problem in its own right. But if one wants to place the paper within the framework of old battles, one might think of it as lending opponents a friendly helping hand.” The quality of a philosopher should not be determined only by their ability to make a good case for their views, but also by the capacity to talk convincingly about their opponent’s. And on that metric, David is certainly world-class.
How do psychedelic drugs produce their characteristic range of acute effects in perception, emotion, cognition, and sense of self? How do these effects relate to the clinical efficacy of psychedelic-assisted therapies? Efforts to understand psychedelic phenomena date back more than a century in Western science. In this article I review theories of psychedelic drug effects and highlight key concepts which have endured over the last 125 years of psychedelic science. First, I describe the subjective phenomenology of acute psychedelic effects using the best available data. Next, I review late 19th-century and early 20th-century theories—model psychoses theory, filtration theory, and psychoanalytic theory—and highlight their shared features. I then briefly review recent findings on the neuropharmacology and neurophysiology of psychedelic drugs in humans. Finally, I describe recent theories of psychedelic drug effects which leverage 21st-century cognitive neuroscience frameworks—entropic brain theory, integrated information theory, and predictive processing—and point out key shared features that link back to earlier theories. I identify an abstract principle which cuts across many theories past and present: psychedelic drugs perturb universal brain processes that normally serve to constrain neural systems central to perception, emotion, cognition, and sense of self. I conclude that making an explicit effort to investigate the principles and mechanisms of psychedelic drug effects is a uniquely powerful way to iteratively develop and test unifying theories of brain function.
Subjective rating scale items selected after psilocybin (blue) and placebo (red) (n = 15) (Muthukumaraswamy et al., 2013). “Items were completed using a visual analog scale format, with a bottom anchor of ‘no, not more than usually’ and a top anchor of ‘yes, much more than usually’ for every item, with the exception of ‘I felt entirely normal,’ which had bottom and top anchors of ‘No, I experienced a different state altogether’ and ‘Yes, I felt just as I normally do,’ respectively. Shown are the mean ratings for 15 participants plus the positive SEMs. All items marked with an asterisk were scored significantly higher after psilocybin than placebo infusion at a Bonferroni-corrected significance level of p < 0.0022 (0.5/23 items)” (Muthukumaraswamy et al., 2013, p. 15176).
Neuropharmacology and Neurophysiological Correlates of Psychedelic Drug Effects
Klee recognized that his above hypotheses, inspired by psychoanalytic theory and LSD effects, required neurophysiological evidence. “As far as I am aware, however, adequate neurophysiological evidence is lacking … The long awaited millennium in which biochemical, physiological, and psychological processes can be freely correlated still seems a great distance off” (Klee, 1963, p. 466, 473). What clues have recent investigations uncovered?
A psychedelic drug molecule impacts a neuron by binding to and altering the conformation of receptors on the surface of the neuron (Nichols, 2016). The receptor interaction most implicated in producing classic psychedelic drug effects is agonist or partial agonist activity at serotonin (5-HT) receptor type 2A (5-HT2A) (Nichols, 2016). A molecule’s propensity for 5-HT2A affinity and agonist activity predicts its potential for (and potency of) subjective psychedelic effects (Glennon et al., 1984; McKenna et al., 1990; Halberstadt, 2015; Nichols, 2016; Rickli et al., 2016). When a psychedelic drug’s 5-HT2A agonist activity is intentionally blocked using 5-HT2Aantagonist drugs (e.g., ketanserin), the subjective effects are blocked or attenuated in humans under psilocybin (Vollenweider et al., 1998; Kometer et al., 2013), LSD (Kraehenmann et al., 2017a,b; Preller et al., 2017), and ayahuasca (Valle et al., 2016). Importantly, while the above evidence makes it clear that 5-HT2A activation is a necessary (if not sufficient) mediator of the hallmark subjective effects of classic psychedelic drugs, this does not entail that 5-HT2A activation is the sole neurochemical cause of all subjective effects. For example, 5-HT2A activation might trigger neurochemical modulations ‘downstream’ (e.g., changes in glutamate transmission) which could also play causal roles in producing psychedelic effects (Nichols, 2016). Moreover, most psychedelic drug molecules activate other receptors in addition to 5-HT2A (e.g., 5-HT1A, 5-HT2C, dopamine, sigma, etc.) and these activations may importantly contribute to the overall profile of subjective effects even if 5-HT2A activation is required for their effects to occur (Ray, 2010, 2016).
How does psychedelic drug-induced 5-HT2A receptor agonism change the behavior of the host neuron? Generally, 5-HT2A activation has a depolarizing effect on the neuron, making it more excitable (more likely to fire) (Andrade, 2011; Nichols, 2016). Importantly, this does not necessarily entail that 5-HT2Aactivation will have an overall excitatory effect throughout the brain, particularly if the excitation occurs in inhibitory neurons (Andrade, 2011). This important consideration (captured by the adage ‘one neuron’s excitation is another neuron’s inhibition’) should be kept in mind when tracing causal links in the pharmaco-neurophysiology of psychedelic drug effects.
The concept of functional connectivity rests upon fMRI brain imaging observations that reveal temporal correlations of activity occurring in spatially remote regions of the brain which form highly structured patterns (brain networks) (Buckner et al., 2013). Imaging of brains during perceptual or cognitive task performance reveals patterns of functional connectivity known as functional networks; e.g., control network, dorsal attention network, ventral attention network, visual network, auditory network, and so on. Imaging brains in taskless resting conditions reveals resting-state functional connectivity (RSFC) and structured patterns of RSFC known as resting state networks (RSNs; Deco et al., 2011). One particular RSN, the default mode network (DMN; Buckner et al., 2008), increases activity in the absence of tasks and decreases activity during task performance (Fox and Raichle, 2007). DMN activity is strong during internally directed cognition and a variety of other ‘metacognitive’ functions (Buckner et al., 2008). DMN activation in normal waking states exhibits ‘inverse coupling’ or anticorrelation with the activation of task-positive functional networks, meaning that DMN and functional networks are often mutually exclusive; one deactivates as the other activates and vice versa (Fox and Raichle, 2007).
Taken together, the recently discovered neurophysiological correlates of subjective psychedelic effects present an important puzzle for 21st-century neuroscience. A key clue is that 5-HT2A receptor agonism leads to desynchronization of oscillatory activity, disintegration of intrinsic integrity in the DMN and related brain networks, and an overall brain dynamic characterized by increased between-network global functional connectivity, expanded signal diversity, and a larger repertoire of structured neurophysiological activation patterns. Crucially, these characteristic traits of psychedelic brain activity have been correlated with the phenomenological dynamics and intensity of subjective psychedelic effects.
21st-Century Theories of Psychedelic Drug Effects
Entropic Brain Theory
Entropic Brain Theory (EBT; Carhart-Harris et al., 2014) links the phenomenology and neurophysiology of psychedelic effects by characterizing both in terms of the quantitative notions of entropy and uncertainty. Entropy is a quantitative index of a system’s (physical) disorder or randomness which can simultaneously describe its (informational) uncertainty. EBT “proposes that the quality of any conscious state depends on the system’s entropy measured via key parameters of brain function” (Carhart-Harris et al., 2014, p. 1). Their hypothesis states that hallmark psychedelic effects (e.g., perceptual destabilization, cognitive flexibility, ego dissolution) can be mapped directly onto elevated levels of entropy/uncertainty measured in brain activity, e.g., widened repertoire of functional connectivity patterns, reduced anticorrelation of brain networks, and desynchronization of RSN activity. More specifically, EBT characterizes the difference between psychedelic states and normal waking states in terms of how the underlying brain dynamics are positioned on a scale between the two extremes of order and disorder—a concept known as ‘self-organized criticality’ (Beggs and Plenz, 2003). A system with high order (low entropy) exhibits dynamics that resemble ‘petrification’ and are relatively inflexible but more stable, while a system with low order (high entropy) exhibits dynamics that resemble ‘formlessness’ and are more flexible but less stable. The notion of ‘criticality’ describes the transition zone in which the brain remains poised between order and disorder. Physical systems at criticality exhibit increased transient ‘metastable’ states, increased sensitivity to perturbation, and increased propensity for cascading ‘avalanches’ of metastable activity. Importantly, EBT points out that these characteristics are consistent with psychedelic phenomenology, e.g., hypersensitivity to external stimuli, broadened range of experiences, or rapidly shifting perceptual and mental contents. Furthermore, EBT uses the notion of criticality to characterize the difference between psychedelic states and normal waking states as it “describes cognition in adult modern humans as ‘near critical’ but ‘sub-critical’—meaning that its dynamics are poised in a position between the two extremes of formlessness and petrification where there is an optimal balance between order and flexibility” (Carhart-Harris et al., 2014, p. 12). EBT hypothesizes that psychedelic drugs interfere with ‘entropy-suppression’ brain mechanisms which normally sustain sub-critical brain dynamics, thus bringing the brain “closer to criticality in the psychedelic state” (Carhart-Harris et al., 2014, p. 12).
Integrated Information Theory
Integrated Information Theory (IIT) is a general theoretical framework which describes the relationship between consciousness and its physical substrates (Oizumi et al., 2014; Tononi, 2004, 2008). While EBT is already loosely consistent with the core principles of IIT, Gallimore (2015) demonstrates how EBT’s hypotheses can be operationalized using the technical concepts of the IIT framework. Using EBT and recent neuroimaging data as a foundation, Gallimore develops an IIT-based model of psychedelic effects. Consistent with EBT, this IIT-based model describes the brain’s continual challenge of minimizing entropy while retaining flexibility. Gallimore formally restates this problem using IIT parameters: brains attempt to optimize the give-and-take dynamic between cause-effect information and cognitive flexibility. In IIT, a (neural) system generates cause-effect information when the mechanisms which make up its current state constrain the set of states which could casually precede or follow the current state. In other words, each mechanistic state of the brain: (1) limits the set of past states which could have causally given rise to it, and (2) limits the set of future states which can causally follow from it. Thus, each current state of the mechanisms within a neural system (or subsystem) has an associated cause-effect repertoire which specifies a certain amount of cause-effect information as a function of how stringently it constrains the unconstrained state repertoire of all possible system states. Increasing the entropy within a cause-effect repertoire will in effect constrain the system less stringently as the causal possibilities are expanded in both temporal directions as the system moves closer to its unconstrained repertoire of all possible states. Moreover, increasing the entropy within a cause-effect repertoire equivalently increases the uncertainty associated with its past (and future) causal interactions. Using this IIT-based framework, Gallimore (2015)argues that, compared with normal waking states, psychedelic brain states exhibit higher entropy, higher cognitive flexibility, but lower cause-effect information.
The first modern brain imaging measurements in humans under psilocybin yielded somewhat unexpected results: reductions in oscillatory power (MEG) and cerebral blood flow (fMRI) correlated with the intensity of subjective psychedelic effects (Carhart-Harris et al., 2012; Muthukumaraswamy et al., 2013). In their discussion, the authors suggest that their findings, although surprising through the lens of commonly held beliefs about how brain activity maps to subjective phenomenology, may actually be consistent with a theory of brain function known as the free energy principle (FEP; Friston, 2010).
In one model of global brain function based on the free-energy principle (Friston, 2010), activity in deep-layer projection neurons encodes top-down inferences about the world. Speculatively, if deep-layer pyramidal cells were to become hyperexcitable during the psychedelic state, information processing would be biased in the direction of inference—such that implicit models of the world become spontaneously manifest—intruding into consciousness without prior invitation from sensory data. This could explain many of the subjective effects of psychedelics (Muthukumaraswamy et al., 2013, p. 15181).
The four key features identified in filtration and psychoanalytic accounts from the late 19th and early 20th century continue to operate in 21st-century cognitive neuroscience: (1) psychedelic drugs produce their characteristic diversity of effects because they perturb adaptive mechanisms which normally constrain perception, emotion, cognition, and self-reference, (2) these adaptive mechanisms can develop pathologies rooted in either too much or too little constraint (3) psychedelic effects appear to share elements with psychotic symptoms because both involve weakened constraints (4) psychedelic drugs are therapeutically useful precisely because they offer a way to temporarily inhibit these adaptive constraints. It is on these four points that EBT, IIT, and PP seem consistent with each other and with earlier filtration and psychoanalytic accounts. EBT and IIT describe psychedelic brain dynamics and link them to phenomenological dynamics, while PP describes informational principles and plausible neural information exchanges which might underlie the larger-scale dynamics described by EBT and IIT. Certain descriptions of neural entropy-suppression mechanisms (EBT), cause-effect information constraints (IIT), or prediction-error minimization strategies (PP, FEP) are loosely consistent with Freud’s ego and Huxley’s cerebral reducing valve.
Qualia Computing comment: As you can see above, 21st century theories of psychedelic action have a lot of interesting commonalities. A one-line summary of what they all agree on could be: Psychedelics increase the available state-space of consciousness by removing constraints that are normally imposed by standard brain functioning. That said, they do not make specific predictions about valence. That is, they leave the question of “which alien states of consciousness will feel good and which ones will feel bad” completely unaddressed. In the following posts about the presentations of members of the Qualia Research Institute at The Science of Consciousness 2018 you will see how, unlike other modern accounts, our Qualia Formalist approach to consciousness can elucidate this matter.
I had two or three such experiences on my new batch of LSD, taking perhaps 2 or 3 “hits” (tabs) each time (presumed to be about  micrograms, or “mikes” per tab). And each time the experience became somewhat more familiar, and I learned to think more clearly under its influence. In July 1990 I took a trip to Europe with Tim, a colleague from work, because we were both presenting posters at a neural network conference in Paris, and the company where we worked very kindly funded the travel expenses. Tim and I took this opportunity to plan a little excursion around Europe after the conference, visiting Germany, Austria, Italy, and Switzerland touring in a rented car. When we got to Austria we bought a little tent at a camping store, then we hiked up an enormous mountain in the Alps, and spent the day sightseeing at the top. When I told Tim that I happened to have some LSD with me, his eyes lit up. It turns out he too had been a hippy in his youth, and had even attended the original Woodstock, so he immediately warmed to the idea of taking LSD with me on a mountain top, although he had not done psychedelic drugs in over a decade. So there in the most stupendous and idyllic setting of a mountain in the Austrian alps, early the next morning after camping overnight, we consumed five hits of LSD each, and spent the day in profound wonder at the glory of creation!
I made a few new and interesting discoveries on that mountain top in Austria. First of all, I learned to have a great deal more control of the experience in the following manner. I discovered that the effects of LSD become markedly stronger and more pronounced when you sit still and stare, and clear your mind, much like a state of zen meditation, or pre-hypnotic relaxation. When you do this under LSD, the visual world begins to break up and fragment in a most astonishing way. You tend to lose all sense of self, that is, you lose the distinction between self and non-self. This can be a very alarming experience for those who are prone to panic or anxiety, or for those who insist on maintaining a level of control and awareness of themselves and the world around them. But I also discovered that this mental dissociation and visual confusion can be diminished, and normal consciousness can be largely restored by simply looking around, moving about, and interacting actively with the world around you. Because when you do this, suddenly the world appears as a solid and stable structure again, and your familiar body reappears where it belongs at the center of your world of experience. This discovery greatly enhanced my ability to explore the deeper spaces of consciousness revealed by the drug, while providing an insurance against the natural panic that tends to arise with the dissolusion of the self, and the world around you. It allowed me to descend into the depths of the experience while maintaining a life line back to consensual reality, like a spelunker descending into the bowels of the deep underground cavern of my mind, while always able to return safely to the surface. And what a splendid and magnificent cavern it was that I discovered within my mind!
One of the most prominent aspects of consciousness that has puzzled philosophers and psychologists for centuries is the unity of conscious experience. We feel that we live in a world that surrounds our body, and that world appears as a single “picture” or volumetric spatial structure, like a theatre set, every piece of which takes its proper place in the panorama of surrounding experience. It has always been somewhat difficult to grasp this notion of conscious unity, because it is difficult to even conceptualize the alternative. What would consciousness be like if it were not unified? What does that even mean? Under LSD you can discover what non-unified consciousness is like for yourself, and that in turn by contrast offers profound insights as to the nature and meaning of unified consciousness. Again, the most interesting revelations of the psychedelic experience are not confined to that experience itself, but they reveal insights into the nature of normal conscious experience that might otherwise be missed due to its familiarity. In fact, I realized much later, even normal consciousness has aspects which are not unified.
The most familiar example of non-unified consciousness is seen in binocular vision. Under normal conditions the two eyes view the same scene and produce a three-dimensional “picture” in the mind that is a unified construction based on the information from both eyes simultaneously. But everyone knows the experience of double vision. For those with greater control over their own visual function, double vision is easily achieved by simply staring into space and relaxing the eyes. As a vision scientist myself, I have trained myself to do this so as to be able to “free fuse” a binocular pair of left-eye, right-eye images to create the perception of a 3D scene. For those who have difficulty with this, a similar experience can be had by holding a small mirror at an angle close in front of one eye, so as to send very different images into the two eyes. Whichever way you do it, the result is rather unremarkable in its familiarity, and yet when you think of it, this is in fact an example of disunity of conscious experience that is familiar to one and all. For what you see in double vision is actually two visual experiences which are seen as if they are superimposed in some manner, and yet at the same time they are also experienced each in its own separate disconnected space. It is generally possible to observe the correspondence between these two disconnected visual experiences, for example to determine which point in one eye view relates to a particular point in the other, as if viewing two slide transparencies that are overlaid on top of one another, although this correspondence is shifting and unstable, as the vergence between your two eyes tends to wander when binocular fusion is broken. But in fact it is more natural to simply ignore that correspondence and to view the two visual experiences as separate and disconnected spaces that bear no significant spatial relation to each other. When the images in our two eyes do not correspond, we tend to focus on one while ignoring the other, like an experienced marksman who no longer has to close his idle eye while aiming a gun. And yet, although the image from the idle eye is generally ignored, it has not left consciousness entirely, and with an effort, or perhaps more accurately, with an absence of effort or focus, it is possible to experience both views simultaneously.
In the trance-like state of yoga-like meditation performed under LSD, the entire visual world breaks up and fragments in this manner into a multitude of disconnected parallel conscious experiences, each one only loosly related spatially to the other experiences in the visual field. The effect is much enhanced by the fact that your eyes actually diverge or relax in this mental state, as they do under binocular fission, and this helps trigger the state of visual confusion as your mind gives up on trying to make sense of what it is seeing. As in Zen meditation, the LSD trance state is a passive or receptive state of consciousness that allots equal attention, or perhaps lack of attention, to all components of experience, which is why they appear in parallel as separate disconnected pieces. The state of normal active consciousness resists this kind of parallel confusion, and tends to select and focus on the the most significant portion, like the marksman aiming a gun, suppressing alternative experiences such as the view from the idle eye.
The deep LSD-induced trance state can be easily broken by simply moving the eyes, so conversely, the deeper states are achieved by complete mental and physical relaxation, with glazed eyes staring blankly into space. But of all the separate fragments of visual experience observed in this mental state, there is one special fragment located at the very center of the visual field, the foveal center, that appears somewhat sharper and clearer than the rest of the visual field. In fact, the visual fragmentation is somewhat like a kind of tunnel vision in which the peripheral portions of the visual field break off and disconnect from this central portion of the experience. But while the peripheral fragments become separated from the whole, they are never entirely and completely independent, but appear to interact with each other, and especially with the central foveal image in characteristic ways. For example if the foveal image shows a couple of blades of grass, twitching and dancing in the wind, then if any of the peripheral fragments of visual experience happen to show a similar image, i.e. blades of grass at a similar angle and twitching and dancing in synchrony with those in the foveal view, then the central and peripheral images become instantly coupled into a larger unified perceptual experience of a global motion sweeping through the image. Instead of a million blades of grass each twitching individually, we perceive the invisible wind as a wave of synchronous motion that sweeps invisibly across the blades of grass. The waves of motion caused by the wind are perceived as waves of energy across the visual field, a perceptual experience of something larger than the individual grass blades that collectively give rise to it. By careful adjustment of my state of relaxation, I found I could relax until the visual world fragmented into a million independent experiences, and I could gently bring it back into focus, as first a few, and then ever more of the fragmented visual experiences coupled together into fewer separate, and eventually a single unified global experience, much like the moment of binocular fusion when the two monocular images finally lock into each other to produce a single binocular experience.
When the visual world was locked into a unified perceptual experience, even then there were instabilities in local portions of the scene. A little detail seen in distant trees appears first as a mounted horseman, then pops abruptly into a hand with three fingers extended, then to a duck on a branch, then back to the mounted horseman, all the while the actual shape and color perceived remain unchanged, it is only the interpretation, or visual understanding of that pattern that switches constantly, as when a child sees mountains and castles in the clouds. One of the many possible interpretations is of a dead tree with leafless branches, (the veridical percept of what was actually there) and that is the only alternative that enters consciouseness under normal circumstances. The effect of LSD is to make the visual system more tolerant of obvious contradictions in the scene, such as a giant horseman frozen in a line of trees. The effect is like those surrealistic Dali paintings, for example the Three Ages of Man, shown in Figure 2.1, where one sees a single coherent scene, local parts of which spontaneously invert into some alternative interpretation. This is very significant for the nature of biological vision, for it shows that vision involves a dynamic relaxation process whose stable states represent the final perceptual interpretation.
There was another interesting observation that I made that day. I noticed that under LSD things appear a little more regular and geometrical than they otherwise do. It is not the shape of things that is different under LSD, but rather the shape of the things we see in objects. For example a cloud is about as irregular and fragmented a shape as a shape can be, and yet we tend to see clouds in a simplified cartoon manner, as a little puff composed of simple convex curves. A real cloud under closer inspection reveals a ragged ugly appearance with very indefinite boundaries and irregular structure. Under LSD the cloud becomes even more regular than usual. I began to see parts of the cloud as regular geometrical shapes, seeing the shapes in the shapes of the cloud as if on a transparent overlay.
Another rather astonishing observation of the LSD experience was that the visual world wavered and wobbled slowly as if the visual scene was painted on an elastic canvas that would stretch over here while shrinking over there, with great waves of expansion and contraction moving slowly across the scene, as if the whole scene was “breathing”, with its component parts in constant motion relative to each other. This was perhaps the most compelling evidence that the world of experience is not the solid stable world that it portrays. Figure 2.2 shows a sketch I made shortly after my alpine mountain adventure to try to express the wavery elasticity and the visual regularity I had observed under LSD. This picture is of course an exaggeration, more of an impression than a depiction of how the experience actually appeared.
The geometrical regularity was particularly prominent in peripheral vision, when attending to the periphery without looking to see what is there. Usually peripheral vision is hardly noticed, giving the impression of a homogeneous visual field, but under LSD the loss of resolution in peripheral vision becomes more readily apparent, especially when holding a fixed and glassy stare. And in that periphery, objects like trees or shrubs appear more regular and geometrical than they do in central vision, like artificial Christmas trees with perfectly regular spacing of brances and twigs. Again, it was not the raw image in the periphery that appeared regular or geometrical, but rather it was the invisible skeleton of visual understanding derived from that raw colored experience that exhibits the more regular features. And suddenly I could see it. This is the way the visual system encodes visual form in a compact or compressed manner, by expressing shape in terms of the next nearest regular geometrical form, or combination of forms. Children draw a tree as a circular blob of leaves on top of a straight vertical trunk, or a pine tree as a green triangle with saw-tooth sides. It is not that we see trees in those simplified forms, but rather that we see those simplified forms in the trees, and the forms that we perceive in these invisible skeletons are the expression of our understanding of the shapes we perceive those more irregular forms to have. This was later to turn into my harmonic resonance theory of the brain, as I sought an explanation for this emerging regularity in perception, but in 1990 all I saw was the periodicity and the symmetry, and I thought they were profoundly beautiful.
My friend Tim who had not done LSD for many years, responded to this sudden 5 hit dose by going into a state of complete dissociation. He lay down on the forest floor with glassy eyes, muttering “It is TOO beautiful! It is TOO beautiful!” and he did not respond to me, even when I stared him straight in the face. He reported afterwards that he found himself in a giant Gothic cathedral with the most extravagantly elaborate and brightly painted ornamental decorations all around him. This too can be seen as an extreme form of the regularization discussed above. Under the influence of this powerful dose, Tim’s visual brain could no longer keep up with the massive irregularity of the forest around him, and therefore presented the forest in simplified or abbreviated form, as the interior of a Gothic cathedral. It captures the large geometry of a ground plane that supports an array of vertical columns, each of which fans out high overhead to link up into an over-arching canopy of branches. The only difference is that in the Gothic cathedral the trees are in a regular geometrical array, and each one is a masterpiece of compound symmetry, composed of smaller pillars of different diameters in perfectly symmetrical arrangements, and studded with periodic patterns of ribs, ridges, or knobby protruberances as a kind of celebration of symmetry and periodicity for their own sake. There is a kind of geometrical logic expressed in the ornamental design. If part of the cathedral were lost or destroyed, the pattern could be easily restored by following the same logic as the rest of the design. In information-theoretic terms, the Gothic cathedral has lots of redundancy, its pattern could be expressed in a very much simpler compressed geometrical code. In Tim’s drug-addled brain his visual system could only muster a simple code to represent the world around him, and that is why Tim saw the forest as a Gothic cathedral. Under normal conditions, the additional information of irregularity, or how each tree and branch breaks from the strict regularity of the cathedral model of it, creates the irregular world of experience that we normally see around us. This suggests that the beautiful shapes of ornamental art are not the product of the highest human faculty, as is commonly supposed, but rather, ornamental art offers a window onto the workings of a simpler visual system, whose image of the world is distorted by artifacts of the representational scheme used in the brain. The Gothic cathedral gives a hint as to how the world might appear to a simpler creature, a lizard, or a snake, to whom the world appears more regular than it does to us, because its full irregularity is too expensive to encode exhaustively in all its chaotic details. Of course the flip-side of this rumination is that the world that we humans experience, even in the stone-cold sober state, is itself immeasurably simpler, more regular and geometric, that the real world itself, of which our experience is an imperfect replica. In the words of William Blake, “If the doors of perception were cleansed, everything would appear to man as it is, infinite.”
While I was a PhD student at Boston University, my parents owned a beautiful ski lodge house in the picturesque town of Mittersill in the mountains of New Hampshire, and on spring breaks or long week-ends I would invite my friends, the other PhD candidates, up to Mittersill where we would take long hikes up the mountain, and spend evenings by the fireplace. I introduced a small circle of my friends to the illuminating experience of LSD, in the hopes of sharing some of my perceptual discoveries with them, and perhaps inducing them to learn to use the experience to make discoveries of their own. Eventually Mittersill became associated in our minds with these group trips with an ever-shrinking circle of true diehard psychonauts, making our regular pilgrimage up the mountain in search of Truth and to touch the face of God. We always brought a goodly supply of Happy T’Baccy, which provides a beautiful complement and bemellowment to the otherwise sometimes sharp and jangly LSD experience. Our pattern was usually to arrive on a Friday night, cook up a great feast, and spend an evening by the fire, drinking beer and/or wine and passing the pipe around until everyone felt properly toasted. The talk was often about the workings of mind and brain, since we were all students of cognitive and neural systems. We were all adept computer programmers and well versed in mathematics as part of our PhD studies, so we all understood the issues of mental computation and representation, and I found the conversations about the computational principles of the mind, to be most interesting and intellectually stimulating. This was the high point of my academic career, this is why people want to be scientists. The next morning we would rise early, and after a hearty breakfast, we would all set off up the mountain, which was a steep brisk climb of two or three hours. About half way up the mountain, at a carefully pre-planned time, we would stop, and each “dose up” with our individually chosen dose of LSD for the occasion, timed to reach the peak of the experience about the time we reached the peak of the mountain. Then we would continue our climb through the rich lush mountain forests of New Hampshire to the top of Maida Vale, the sub-peak next to Canon Mountain, from whence a stupendous view opened up across to Canon Mountain and the vast valley below. We would settle ourselves comfortably at some location off the beaten track, and spend the best hours of the day just dreaming crazy thoughts and drinking in the experience
By now I had perfected my introspective techniques to the point that I could voluntarily relax my mind into a state of total disembodiment. The visual world began to fragment, first into two large pieces as binocular fusion was broken, then into a few smaller fragments, and eventually into a miriad of separate fragments of consciousness, like the miriad reflections from a shattered mirror. I was fascinated by this state of consciousness, and how different it was from normal consensual reality. Most alarming or significant was the total absence of my body from its normal place at the center of my world. As the world began to fragment, my body would fragment along with it, disconnected pieces of my body seeming to exist independently, one part here, another over there, but in separate spaces that did not exist in a distinct spatial relation to each other, but as if in different universes, like reflections from different shards of a shattered mirror. And as the visual world attained total fragmentation, all evidence of my body completely vanished, and I lived the experience of a disembodied spirit, pure raw experience, just sensations of color, form, and light. I felt safe and secure in this environment among friends, so I did not mind the total vulnerability afforded by a complete functional shutdown of my mind in this manner. Besides, I had learned that I could snap back together again to a relatively normal consciousness at will, simply by getting up and looking around, and interacting with the world. I was endlessly fascinated by the state of complete disembodiment, and one feature of it impressed itself on me again and again, the geometric regularity of it all. There was a powerful tendency for everything to reduce to ornamental patterns, geometrical arrangements of three-dimensional shapes, like so many glistening gems in a jewelry store, with rich periodic and symmetrical patterns in deep vibrant colors. The deeper I plunged into the experience, the simpler and more powerfully emotive those patterns became. And since my body had totally vanished, these patterns were no longer patterns I viewed out in the world, but rather, the patterns were me, I had become the spatial patterns which made up my experience. I began to see that symmetry and periodicity were somehow primal to experience.
I remember lying on my back and watching the clouds in the sky overhead. Weather patterns are often chaotic at the tops of mountains, and on more than one occasion we were located at a spot where the clouds that formed on the windward side of the mountain were just cresting the summit, where they would dissove in a continuous process of chaotic fragmentation, a veritable Niagra Falls of nebular dissolution, evocative of the fragmentation of my psychedelic experience. The shattered shreds of cloud, viewed from this close up, were about the most ragged and irregular shapes you could imagine, and yet under the influence of the drug I kept seeing fleeting geometrical patterns in them. There were great circular pinwheels and arabesques, patterns like those carved in the doors of Gothic cathedrals, but each flashing in and out of brief existence so quickly that it would be impossible to draw them. I began to realize that the human mind is one great symmetry engine, that the mind makes sense of the world it sees by way of the symmetries that it finds in it. Symmetry is the glue that binds the fragments of experience into coherent wholes.
Figure 2.3 shows a series of paintings by artist Louis Wain, that I find very evocative of the LSD experience. Wain suffered a progressive psychosis that manifested itself in his art, which was originally quite realistic, becomming progressively more abstract and ornamental, in the manner I observed in the various stages or levels of my LSD dissociation. Figure 2.3 A shows a fairly realistic depiction of a cat, but there are curious artifacts in the textured background, a mere hint of periodicity breaking out. I would see such artifacts everywhere, almost invisible, fleeting, and faint, reminiscent of the ornamental pinstripe patterns painted on trucks and motorcycles, a kind of eddy in the stream of visual consciousness as it flows around visual features in the scene. As I descended into the fully dissociated states, the patterns would become more like Figure 2.3 B, C, and D, breathtakingly ornate, with many levels of compound symmetry, revealing the eigenfunctions of perceptual representation, the code by which visual form is represented in the brain.
At times we would break free from our individual reveries, and share absurd nonsensical conversations about our observations. One time, looking down at the vast valley stretching out below us, a vista that seemed to stretch out to distances beyond comprehension, my old friend Peter said that it was hard to tell whether all that scenery was just “way out there”, or was it “way WAY out there?” Of course we both laughed heartily at the absurdity of his statement, but I knew exactly what he meant. When viewing such a grand vista under normal consciousness, one is deeply impressed by the vastness of the view.
But under the influence of the drug, the vista somehow did not look quite as large as we “knew” that it really was. What Peter was saying was that for some strange reason, the world had shrunken back in on us, and that magnificently vast valley had shrunken to something like a scale model, or a diorama, where it is easy to see how vast the modeled valley is supposed to be, but the model itself appears very much smaller than the valley it attempts to portray. What Peter was observing was the same thing I had observed, and that was beginning to even become familiar, that the world of our experience is not a great open vastness of infinite space, but like the domed vault of the night sky, our experience is bounded by, and contained within, a vast but finite spherical shell, and under the influence of psychedelic drugs that shell seemed to shrink to smaller dimensions, our consciousness was closing in on its egocentric center. Many years later after giving it considerable thought, I built the diorama shown in Figure 2.4 to depict the geometry of visual experience as I observed it under LSD.
And when I was in the completely disembodied state, my consciousness closed in even smaller and tighter, the range of my experience was all contained within a rather modest sized space, like a glass showcase in a jewelry store, and the complexity of the patterns in that space was also reduced, from the unfathomably complex and chaotic fractal forms in a typical natural scene, to a much simpler but powerfully beautiful glistening ornamental world of the degree of complexity seen in a Gothic cathedral. The profound significance of these observations dawned on me incrementally every time we had these experiences. I can recall fragmentary pieces of insights gleaned through the confusion of our passage down the mountain, stopping to sit and think wherever and whenever the spirit took us. At one point three of us stopped by a babbling brook that was crashing and burbling through the rocks down the steep mountain slope. We sat in silent contemplation at this primal “white noise” sound, when Lonce commented that if you listen, you can hear a million different sounds hidden in that noise. And sure enough when I listened, I heard laughing voices and honking car horns and shrieking crashes and jangly music and every other possible sound, all at the same time superimposed on each other in a chaotic jumbled mass. It was the auditory equivalent of what we were seeing visually, the mind was latching onto the raw sensory experience not so much to view it as it really is, but to conjure up random patterns from deep within our sensory memory and to match those images to the current sensory input. And now I could see the more general concept. We experience the world by way of these images conjured up in our minds. I came to realize why the LSD experience was enjoyed best in outdoors natural settings, and that is because the chaos of a natural scene, with its innumerable twigs and leaves and stalks, acts as a kind of “white noise” stimulus, like the babbling brook, a stimulus that contains within it every possible pattern, and that frees our mind to interpret that noise as anything it pleases.
On one occasion, on arrival back down at the lodge, our minds were still reeling, and we were not yet ready to leave the magnificence of the natural landscape for the relatively tame and controlled environment indoors, so Andy and I stopped in the woods behind the house and just stood there, like deer in the headlights, drinking in the experience. It was a particularly dark green and leafy environment in the shadow behind the house, with shrubs and leaves at every level, around our ankles, our knees, our shoulders, and all the way up to a leafy canopy high overhead, and at every depth and distance from inches away to the farthest visible depths of the deep green woods. The visual chaos was total and complete, the world already fragmented into millions and millions of apparently disconnected features and facets uniformly in all directions, that it hardly required LSD to appreciate the richness of this chaotic experience. But under LSD, and with the two of us standing stock still for many long minutes of total silence, we both descended into a mental fragmentation as crazy as the fragmented world around us. My body disappeared from my experience, and I felt like I became the forest; the forest and all its visual chaos was me, which in a very real sense it actually was. And in that eternal timeless moment, wrapped in intense but wordless thought, I recognized something very very ancient and primal in my experience. I felt like I was sharing the experience of some primal creature in an ancient swamp many millions of years ago, when nature was first forging its earliest models of mind from the tissue of brain. I saw the world with the same intense attentive concentration, bewilderment, and total absence of human cogntive understanding, as that antediluvian cretaceous lizard must have experienced long ago and far away. The beautiful geometrical and symmetrical forms that condensed spontaneously in my visual experience were like the first glimmerings of understanding emerging in a primitive visual brain. This is why I do psychedelic drugs, to connect more intimately with my animal origins, to celebrate the magnificent mental mechanisms that we inherit from the earliest animal pioneers of mind.
One time after we had descended from the mountain and were sitting around the lodge drinking and smoking in a happy state of befuddlement, a peculiar phenomenon manifested itself that made a deep impression on me. It was getting close to supper time and somebody expressed something to that effect. But our minds were so befuddled by the intoxication that we could only speak in broken sentences, as we inevitably forgot what we wanted to say just as we started saying it, instantly confused by our own initial words. So the first person must have said something like “I’m getting hungry. Do you think…” and then tailed off in confusion. But somebody else would immediately sense the direction that thought was going, and would instinctively attempt to complete the sentence with something like “…we otta go get…” before himself becoming confused, at which a third person might interject “…something to eat?” It does not sound so remarkable here in the retelling, but what erupted before our eyes was an extraordinarily fluid and coherent session of what we later referred to as group thought, where the conversation bounced easily from one person to the next, each person contributing only a fragmentary thought, but nobody having any clear idea of what the whole thought was supposed to be, or how it was going to end. What was amazing about the experience was the coherence and purposefulness of the emergent thought, how it seemed to have a mind of its own independent of our individual minds, even though of course it was nothing other than the collective action of our befuddled minds. It was fascinating to see this thought, like a disembodied spirit, pick up and move our bodies and hands in concerted action, one person getting wood for the fire, another getting out a frying pan, a third going for potatoes, or to open a bottle of wine, none of it planned by any one person, and yet each person chipped in just as and when they thought would be appropriate, as the supper apparently “made itself” using us as its willing accomplices. It was reminiscent of the operational principle behind a ouija board, where people sitting in a circle around a table, all rest an index finger on some movable pointer on a circular alphabet board, and the pointer begins to spell out some message under the collective action of all those fingers. At first the emergent message appears random, but after the first few letters have been spelled out, the participants start to guess at each next letter, and without anyone being overtly aware of it, the word appears to “spell itself” as if under the influence of a supernatural force. As with the ouija board, none of us participating in the group thought experience could hold a coherent thought in their head, and yet coherent thoughts emerged nevertheless, to the bewilderment of us all. And later I observed the same phenomenon with different LSD parties. I have subsequently encountered people well versed in the psychedelic experience who claim with great certainty to have experienced mental telepathy in the form of wordless communication and sharing of thoughts. But for us hard-nosed scientific types, the natural explanation for this apparently supernatural experience is just as wonderous and noteworthy, because it offers a hint as to how the individual parts of a mind act together in concert to produce a unified coherent pattern of behavior that is greater than the mere sum of its constituent parts. The principle of group thought occurs across our individual brains in normal sober consciousness as we instinctively read each other’s faces and follow each other’s thoughts, and it is seen also whenever people are moving a heavy piece of furniture, all lifting and moving in unison in a coherent motion towards some goal. But the psychedelic experience highlighted this aspect of wordless communication and brought it to my attention in clearer, sharper focus.
As the evening tailed on and the drug’s effect gradually subsided in a long slow steady decline, we would sit by the fire and pass a pipe or joint around, and share our observations and experiences of the day. At one point Lonce, who had just taken a puff of a joint, breathed out and held it contemplatively for a while, before taking a second puff and passing it on to the next person in the circle. I objected to this behavior, and accused Lonce of “Bogarting” the joint – smoking it all by himself without passing it along. Lonce responded to this with an explanation that where he comes from, people don’t puff and pass in haste, but every man has the right to a few moments of quiet contemplation and a second puff before passing it along. That was, he explained, the civilized way of sharing a joint. So we immediately adopted Lonce’s suggestion, and this method of sharing a joint has henceforth and forever since been referred to by us as the “Lonce Method”.
As I have explained, the purpose of all this psychonautical exploration was not merely for our own entertainment, although entertaining it was, and to the highest degree. No, the primary purpose of these psychonautical exploits was clear all along at least in my mind, and that was to investigate the theoretical implications of these experiences to theories of mind and brain. And my investigations were actually beginning to bear fruit in two completely separate directions, each of which had profound theoretical implications. At that time I was studying neural network theories of the brain, or how the brain makes sense of the visual world. A principal focus of our investigation was the phenomena of visual illusions, like the Kanizsa figure shown in Figure 2.5 A. It is clear that what is happening here is that the visual mind is creating illusory contours that link up the fragmentary contours suggestive of the illusory triangle. In our studies we learned of Stephen Grossberg’s neural network model of this phenomenon. Grossberg proposed that the visual brain is equipped with oriented edge detector neurons that fire whenever a visual edge passes through their local receptive field. These neurons would be triggered by the stark black / white contrast edges of the stimulus in Figure 2.5 A. A higher level set of neurons would then detect the global pattern of collinearity, and sketch in the illusory contour by a process of collinear completion. These higher level “cooperative cells” were equipped with much larger elongated receptive fields, long enough to span the gap in the Kanizsa figure, and the activation of these higher level neurons in turn stimulated lower level local edge detector neurons located along the illusory contour, and that activation promoted the experience of an illusory contour where there is none in the stimulus
I believed I was seeing these illusory contours in my LSD experience, as suggested by all the curvy lines in my sketch in Figure 2.2 above. But I was not only seeing the contours in illusory figures, I was seeing “illusory” contours just about everywhere across the visual field. But curiously, these contours were not “visible” in the usual sense, but rather, they are experienced in an “invisible” manner as something you know is there, but you cannot actually see. However I also noticed that these contours did have an influence on the visible portions of the scene. I have mentioned how under LSD the visual world tends to “breathe”, to waver and wobble like a slow-motion movie of the bottom of a swimming pool viewed through its surface waves. In fact, the effect of the “invisible” contours was very much like the effect of the invisible waves on the surface of the pool, which can also be seen only by their effects on the scene viewed through them. You cannot see the waves themselves, all you can see is the wavering of the world caused by those waves. Well I was observing a very similar phenomenon in my LSD experience. I devised a three-dimensional Kanizsa figure, shown in Figure 2.5 B, and observed that even in the stone-cold sober state, I could see a kind of warp or wobble of the visual background behind the illusory contour caused by the figure, especially if the figure is waved back and forth gently against a noisy or chaotic background. So far, my LSD experiences were consistent with our theoretical understanding of the visual process, confirming to myself by direct observation an aspect of the neural network model we were currently studying in school.
But there was one aspect of the LSD experience that had me truly baffled, and that was the fantastic symmetries and periodicities that were so characteristic of the experience. What kind of neural network model could possibly account for that? It was an issue that I grappled with for many months that stretched into years. In relation to Grossberg’s neural network, it seemed that the issue concerned the question of what happens at corners and vertices where contours meet or cross. A model based on collinearity alone would be stumped at image vertices. And yet a straightforward extension of Grossberg’s neural network theory to address image vertices leads to a combinatorial explosion.The obvious extension, initially proposed by Grossberg himself, was to posit specialized “cooperative cells” with receptive fields configured to detect and enhance other configurations of edges besides ones that are collinear. But the problem is that you would need so many different specialized cells to recognize and complete every possible type of vertex, such as T and V and X and Y vertices, where two or more edges meet at a point, and each of these vertex types would have to be replicated at every orientation, and at every location across the whole visual field! It just seemed like a brute-force solution that was totally implausible.
Then one day after agonizing for months on this issue, my LSD observations of periodic and symmetrical patterns suddenly triggered a novel inspiration. Maybe the nervous system does not require specialized hard-wired receptive fields to accomodate every type of vertex, replicated at every orientation at every spatial location. Maybe the nervous system uses something much more dynamic and adaptive and flexible. Maybe it uses circular standing waves to represent different vertex types, where the standing wave can bend and warp to match the visual input, and standing waves would explain all that symmetry and periodicity so clearly evident in the LSD experience as little rotational standing waves that emerge spontaneously at image vertices, and adapt to the configuration of those vertices. Thanks to illegal psychotropic substances, I had stumbled on a staggeringly significant new theory of the brain, a theory which, if proven right, would turn the world of neuroscience on its head! My heart raced and pounded at the implications of what I had discovered. And this theory became the prime focus of my PhD thesis (Lehar 1994), in which I did computer simulations of my harmonic resonance model that replicated certain visual illusions in a way that no other model could. I had accomplished the impossible. I had found an actual practical use and purpose for what was becoming my favorite pass-time, psychedelic drugs! It was a moment of glory for an intrepid psychonaut, a turning point in my life. Figure 2.6 shows a page from my notebook dated October 6 1992, the first mention of my new theory of harmonic resonance in the brain.
Compare the above descriptions of point-of-view fragmentation, visual coherence, and symmetry as experienced on LSD, with our very own account of symmetrical pattern completion during psychedelic experiences as presented in Algorithmic Reduction of Psychedelic States (slightly edited for clarity):
Lower Symmetry Detection and Propagation Thresholds
Finally, this is perhaps the most interesting and ethically salient effect of psychedelics. The first three effects (tracers, drifting, and pattern recognition) are not particularly difficult to square with standard neuroscience. This fourth effect, while not incompatible with connectionist accounts, does suggest a series of research questions that may hint at an entirely new paradigm for understanding consciousness.
We have not seen anyone in the literature specifically identify this effect in all of its generality. The lowering of the symmetry detection threshold really has to be experienced to be believed. We claim that this effect manifests in all psychedelic experiences to a greater or lesser extent, and that many effects can in fact be explained by simply applying this effect iteratively.
Psychedelics make it easier to find similarities between any two given phenomenal objects. When applied to perception, this effect can be described as a lowering of the symmetry detection threshold. This effect is extremely general and symmetry should not be taken to refer exclusively to geometric symmetry.
How symmetries manifest depends on the set and setting. Researchers interested in verifying and exploring the quantitative and subjective properties of this effect will probably have to focus first on a narrow domain; the effect happens in all experiential modalities.
Credit: Chelsea Morgan from PsychonautWiki and r/replications
Symmetry detection during psychedelic experiences requires that one’s attention interprets a given element in the scene as a symmetry element. Symmetry elements are geometrical points of reference about which symmetry operations can take place (such as axes of rotation, mirror planes, hyperplanes, etc.). In turn, a collection of symmetry elements defines a symmetry structure in the following way: A symmetry structure is a set of n-dimensional symmetry elements for which the qualities of the experience surrounding each element obeys the symmetry constraints imposed by all the elements considered together.
Psychedelic symmetry detection can be (and typically is) recursively applied to previously constructed symmetry structures. At a given time multiple independent symmetry structures can coexist inside an experience. By guiding one’s attention one can make these structures interact and ultimately merge. Formally, each symmetry structure is capable of establishing a merging relationship with another symmetry structure. This is achieved by simultaneously focusing one’s attention on both. These relationships are fleeting, but they influence the evolution of the relative position of each symmetry element. When two symmetry structures are in a merging relationship, it is possible to rearrange them (with the aid of drifting and pattern recognition) to create a symmetrical structure that incorporates the symmetry elements of both substructures at once. To do so, one’s mind can either detect one (or several) more symmetry elements along which the previously-existing symmetry elements are made to conform, or, alternatively, if the two pre-existing symmetry structures share a symmetry element (e.g. an axis of rotation of order 3), these corresponding identical symmetry elements can fuse and become a bridge that merges both structures.
Surprisingly, valence seems to be related to psychedelic symmetry detection. As one constructs symmetry structures, one becomes aware of an odd and irresistible subjective pull towards building even higher levels of symmetry. In other words, every time the structure of one’s experience is simplified by identifying a new symmetry element in the scene, one’s whole experience seems to snap into a new (simplified) mode, and this comes with a positive feeling. This feeling can take many forms: it may feel blissful, interesting, beautiful, mind-expanding, and/or awe-producing, all depending on the specific structures that one is merging. Conversely when two symmetry structures are such that merging them is either tricky of impossible, this leads to low valence: frustration, anxiety, pain and an odd feeling of being stuck between two mutually unintelligible worlds. We hypothesize that this is the result of dissonance between the incompatible symmetry structures.
If one meditates in a sensorially-minimized room during a psychedelic experience while being aware that one’s symmetry detection threshold has been lowered by the substance, one can recursively re-apply this effect to produce all kinds of complex mathematical structures that incorporate complex symmetry element interactions. In other words, with the aid of concentration one can climb the symmetry gradient (i.e. increase the total number of symmetry elements) up to the point where the degrees of freedom afforded by the symmetry structure limit any further element from being incorporated into it. We will call these experiences peak symmetry states.
Future research should explore and compare the various states of consciousness that exhibit peak symmetry. There is very likely an enormous number of peak symmetry states, some of which are fairly suboptimal and others that cannot be improved upon. If there is a very deep connection between valence, symmetry, information and harmony, it would very likely show in this area. Indeed, we hypothesize that the highest levels of valence that can be consciously experienced involve peak symmetry states. Anecdotally, this connection has already been verified, with numerous trip reports of people achieving states of unimaginable bliss by inhabiting peak symmetry states (often described as fractal mandala-like mirror rooms).
The range of peak symmetry states include fractals, tessellations, graphs, and higher dimensional projections. Which one of these states contains the highest degree of inter-connectivity? And if psychedelic symmetry is indeed related to conscious bliss, which experience of symmetry is human peak bliss?
Higher Order Symmetry
Mirror Symmetry Tessellation
The pictures above all illustrate possible peak symmetry states one can achieve by combining psychedelics and meditation. The pictures illustrate only the core structure of symmetries that are present in these states of consciousness. What is being reflected is the very raw “feels” of each patch of your experiential field. Thus these pictures really miss the actual raw feelings of the whole experience. They do show, however, a rough outline of symmetrical relationships possible in one of these experiences.
Since control interruption is also co-occurrent with the psychedelic symmetry effect, previously-detected symmetries tend to linger for long periods of time. For this reason, the kinds of symmetries one can detect at a given point in time is a function of the symmetries that are currently being highlighted. And thanks to drifting and pattern recognition enhancement, there is some wiggle room for your mind to re-arrange the location of the symmetries experienced. The four effects together enable, at times, a smooth iterative integration of so many symmetries that one’s consciousness becomes symmetrically interconnected to an unbelievable degree.
What may innocently start as a simple two-sided mirror symmetry can end up producing complex arrangements of self-reflecting mirrors showing glimpses of higher and higher dimensional symmetries. Studying the mathematical properties of the allowed symmetries is a research project that has only just begun. I hope one day dedicated mathematicians describe in full the class of possible high-order symmetries that humans can experience in these states of consciousness.
Anecdotally, each of the 17 possible wallpaper symmetry groups can be instantiated with this effect. In other words, psychedelic states lower the symmetry detection threshold for all of the mathematically available symmetrical tessellations.
All of the 17 2-dimensional wallpaper groups can be experienced with symmetry planes detected, amplified and re-arranged during a psychedelic experience.
Revising the symmetrical texture repetition of grass shown above, we can now discover that the picture displays the wallpaper symmetry found in the lower left circle above:
In very high doses, the symmetry completion is so strong that at any point one risks confusing left and right, and thus losing grasp of one’s orientation in space and time. Depersonalization is, at times, the result of the information that is lost when there is intense symmetry completion going on. One’s self-models become symmetrical too quickly, and one finds it hard to articulate a grounded point of view.
LSD-like states allow the global binding of otherwise incompatible schemas by softening the degree to which neighborhood constraints are enforced. The entire experience becomes a sort of chaotic superposition of locally bound islands that can, each in its own way, tell sensory-linguistic stories in parallel about the unique origin and contribution of their corresponding gestalts to the narrative of the self.
This phenomenon forces, as it were, the onset of cognitive dissonance between incompatible schemas that would otherwise evade mutual contact. On the bright side, it also allows mutual resonance between parts that agree with each other. The global inconsistencies are explored and minimized. One’s mind can become a glorious consensus.
Each square represents, and carries with it, the information of a previously experienced cognitive gestalt (situational memories, ideas, convictions, etc.). Some gestalts never come up together naturally. The LSD-like state allows their side-by-side comparison.
In therapy, LSD-like states had been used for many decades in order to integrate disparate parts of one’s personality into a (more) coherent and integrated lifeworld. But scientists at the beginning didn’t know why this worked.
The Turing module then discovered that the kaleidoscopic world of acid can be compared to raising the temperature within an Ising model. If different gestalts imply a variety of semantic-affective constraints, kaleidoscopic Frame Stacking has the formal effect of expanding the region of one’s mind that is taken into consideration for global consistency at any given point in time. The local constraints become more loose, giving global constraints the upper hand. The degree of psychedelia is approximately proportional to the temperature of the model, and when you let it cool, the grand pattern is somewhat different. It is more stable; one arrives at a more globally consistent state. Your semantic-affective constraints are, on the whole, better satisfied. The Turings called this phenomenon qualia annealing.
Ising Model – A simple computational analogy for the LSD-induced global constraint satisfaction facilitation.
If one ups the dose a little bit and lands somewhere in the range between 4 to 8 mg, one is likely to experience what Terrence McKenna called “the Chrysanthemum”. This usually manifests as a surface saturated with a sort of textured fabric composed of intricate symmetrical relationships, bright colors, shifting edges and shimmering pulsing superposition patterns of harmonic linear waves of many different frequencies.
Depending on the dose consumed one may experience either one or several semi-parallel channels. Whereas a threshold dose usually presents you with a single strong vibe (or ambiance), the Chrysanthemum level often has several competing vibes each bidding for your attention. Here are some examples of what the visual component of this state of consciousness may look like.
Chrysanthemum with multuple symmetry channels
The visual component of the Chrysanthemum is often described as “the best screen saver ever“, and if you happen to experience it in a good mood you will almost certainly agree with that description, as it is usually extremely harmonious, symmetric and beautiful in uncountable ways. No external input can possibly replicate the information density and intricate symmetry of this state; such state has to be endogenously generated as a a sort of harmonic attractor of your brain dynamics.
You can find many replications of Chrysanthemum-level DMT experiences on the internet, and I encourage you to examine their implicit symmetries (this replication is one of my all-times favorite).
In Algorithmic Reduction of Psychedelic States we posited that any one of the 17 wallpaper symmetry groups can be instantiated as the symmetries that govern psychedelic visuals. Unfortunately, unlike the generally slow evolution of usual psychedelic visuals, DMT’s vibrational frequency forces such visuals to evolve at a speed that makes it difficult for most people to spot the implicit symmetry elements that give rise to the overall mathematical structure underneath one’s experience. For this reason it has been difficult to verify that all 17 wallpaper groups are possible in DMT states. Fortunately we were recently able to confirm that this is in fact the case thanks to someone who trained himself to do just this. I.e. detecting symmetry elements in patterns at an outstanding speed.
An anonymous psychonaut (whom we will call researcher A) sent a series of trip report to Qualia Computing detailing the mathematical properties of psychedelic visuals under various substances and dose regimens. A is an experienced psychonaut and a math enthusiast who recently trained himself to recognize (and name) the mathematical properties of symmetrical patterns (such as in works of art or biological organisms). In particular, he has become fluent at naming the symmetries exhibited by psychedelic visuals. In the context of 2D visuals on surfaces, A confirms that the symmetrical textures that arise in psychedelic states can exhibit any one of the 17 wallpaper symmetry groups. Likewise, he has been able to confirm that every possible spherical symmetry group can also be instantiated in one’s mind as a resonant attractor on these states.
The images below show some examples of the visuals that A has experienced on 2C-B, LSD, 4-HO-MET and DMT (sources: top left, top middle, the rest were made with this service):
The Chrysanthemum level interacts with sensory input in an interesting way: the texture of anything one looks at quickly becomes saturated with nested 2-dimensional symmetry groups. If you took enough DMT to take you to this level and you keep your eyes open and look at a patterned surface (i.e. statistical texture), it will symmetrify beyond recognition. A explains that at this level DMT visuals share some qualities with those of, say, LSD, mescaline, and psilocin. Like other psychedelics, DMT’s Chrysanthemum level can instantiate any 2-dimensional symmetry, yet there are important differences from other psychedelics at this dose range. These include the consistent change in ambiance (already present in threshold doses), the complexity and consistency of the symmetrical relationships (much more dense and whole-experience-consistent than is usually possible with other psychedelics), and the speed (with a control-interruption frequency reaching up to 30 hertz, compared to 10-20 hertz for most psychedelics). Thus, people tend to point out that DMT visuals (at this level) are “faster, smaller, more detailed and more globally consistent” than on comparable levels of alteration from similar agents.
Now, if you take a dose that is a little higher (in the ballpark of 8 to 12 mg), the Chrysanthemum will start doing something new and interesting…
(3) The Magic Eye Level
A great way to understand the Magic Eye level of DMT effects is to think of the Chrysanthemum as the texture of an autostereogram (colloquially described as “Magic Eye” pictures). Our visual experience can be easily decomposed into two points-of-view (corresponding to the feed coming from each eye) that share information in order to solve the depth-map problem in vision. This is to map each visual qualia to a space with relative distances so (a) the input is explained and (b) you get recognizable every-day objects represented as implicit shapes beneath the depth-map. You can think of this process as a sort of hand-shake between bottom-up perception and top-down modeling.
In everyday conditions one solves the depth-map problem within a second of opening one’s eyes (minus minor details that are added as one looks around). But on DMT, the “low-level perceptions” looks like a breathing Chrysanthemum, which means that the top-down modeling has that “constantly shifting” stuff to play with. What to make of it? Anything you can think of.
There are three major components of variance on the DMT Magic Eye level:
Texture (dependent on the Chrysanthemum’s evolution)
World-sheet (non-occluduing 3D1T depth maps)
Extremelly lowered information copying threshold.
The image on the left is a lobster, the one on the center is a cone and the one to the right contains furniture (a lamp, a chair and a table). Notice that what you see is a sort of depth-map which encodes shapes. We will call this depth-map together with the appearance of movement and acceleration represented in it, a world-sheet.
The world-sheet encodes the “semantic content” of the scene and is capable of representing arbitrary situations (including information about what you are seeing, where you are, what the entities there are doing, what is happening, etc.).
It is common to experience scenes from usually mundane-looking places like ice-cream stores, play pens, household situations, furniture rooms, apparel, etc.. Likewise, one frequently sees entities in these places, but they rarely seem to mind you because their world is fairly self-contained. As if seeing through a window. People often report that the worlds they saw on a DMT trip were all “made of the same thing”. This can be interpreted as the texture becoming the surfaces of the world-sheet, so that the surfaces of the tables, chairs, ice-cream cones, the bodies of the people, and so on are all patterned with the same texture (just as in actual autostereograms). This texture is indeed the Chrysanthemum completely contorted to accommodate all the curvature of the scene.
Magic Eye level scenes often include 3D geometrical shapes like spheres, cones, cylinders, cubes, etc. The complexity of the scene is roughly dose-dependent. As one ups the highness (but still remaining within the Magic Eye level) complex translucid qualia crystals in three dimensions start to become a possibility.
Whatever phenomenal objects you experience on this level that lives for more than a millisecond needs to have effective strategies for surviving in an ecosystem of other objects adapted to that level. Given the extremely lowered information copying threshold, whatever is good at making copies of itself will begin to tesselate, mutate and evolve, stealing as much of your attention as possible in the way. Cyclic transitions occupy one’s attention: objects quickly become scenes which quickly become gestalts from which a new texture evolves in which new objects are detected and so on ad infinitum.
A reports that at this dose range one can experience at least some of the 230 space groups as objects represented in the world-sheet. For example, A reports having stabilized a structure with a Pm-3m symmetry structure, not unlike the structure of ZIF-71-RHO. Visualizing such complex 3D symmetries, however, does seem to require previous training and high levels of mental concentration (i.e. in order to ensure that all the symmetry elements are indeed what they are supposed to be).
There is so much qualia laying around, though, at times not even your normal space can contain it all. Any regular or semi regular symmetrical structure you construct by centering your attention prone to overflow if you focus too much on it. What does this mean? If you focus too much on, for example, the number 6, your mind might represent the various ways in which you can arrange six balls in a perfectly symmetrical way. Worlds made of hexagons and octahedrons interlocked in complex but symmetrical ways may begin to tesselate your experiential field. With every second you find more and more ways of representing the number six in interesting, satisfying, metaphorically-sound synesthetic ways (cf. Thinking in Numbers). Now, what happens if you try to represent the number seven in a symmetric way on the plane? Well, the problem is that you will have too many heptagons to fit in Euclidean space (cf. Too Many Triangles). Thus the resulting symmetrical patterns will seem to overflow the plane (which is often felt as a folding and fluid re-arrangement, and when there is no space left in a region it either expands space or it is felt as some sort of synesthetic tension or stress, like a sense of crackling under a lot of pressure).
Heptagonal tiling of the Poincaré disk representing the 2D hyperbolic space.
Order-7-3 rhombille tiling
In particular, A claims that in the lower ranges of the DMT Magic Eye level the texture of the Chrysanthemum tends to exhibit heptagonal and triheptagonal tilings (as shown in the picture above). A explains that at the critical point between the Chrysanthemum and the Magic Eye levels the intensity of the rate of symmetry detection of the Chrysanthemum cannot be contained to a 2D surface. Thus, the surface begins to fold, often in semi-symmetric ways. Every time one “recognizes” an object on this “folding Chrysanthemum” the extra curvature is passed on to this object. As the dose increases, one interprets more and more of this extra curvature and ends up shaping a complex and highly dynamic spatiotemporal depth map with hyperbolic folds. In the upper ranges of the Magic Eye level the world-sheet is so curved that the scenes one visualize are intricate and expansive, feeling at times like one is able to peer through one’s horizon in all directions and see oneself and one’s world from a distance. At some critical point one may feel like the space around one is folding into a huge dome where the walls are made of whatever texture + world-sheet combination happened to win the Darwinian selection pressures applied to the qualia patterns on the Magic Eye level. This concentrated hyperbolic synesthetic texture is what becomes the walls of the Waiting Room…
As suggested by the quotes above, psychedelic symmetries are extremely beautiful. This is puzzling for most worldviews. But once you take into account the Tyranny of the Intentional Object and the Symmetry Theory of Valence, it begins to make sense why peak symmetry on psychedelics is so delightfully amazing (sometimes unimaginably better than a great orgasm or a back-rub on ecstasy). In this vein, we are proud to point out that we have worked out some precise, empirically testable, predictions based on connectome-specific harmonic waves and the symmetry theory of valence (see: Quantifying Bliss).
Interestingly, the process of point-of-view fragmentation and subsequent annealing to global geometric coherence is hinted at by John C. Lilly in his book Programming and Metaprogramming in the Human Biocomputer (you can read the relevant quote here: Psychedelic alignment cascades).
As evidenced in Steven Lehar’s writeup (and the other quotes and references provided above), we could say that giving psychedelics to brilliant people with a scientific background in cognitive science and natural philosophical talent does indeed have the ability to expand our evidential base for the nature of consciousness and the way our brains work.
It is thus far more useful for the advancement of the science of consciousness to allocate such experiences to serious scientifically-minded psychonauts than it is to give those same agents to people with pre-scientific frameworks. The phenomenological descriptions and insights provided by a single Steven Lehar on acid are worth a thousand Buddhists, French Existentialists, poets, and film-makers on LSD.
Either way, it is unconscionable that today most leading academics working on the problem of consciousness have no personal experience with these agents, nor they show much interest in the alien state-spaces that they disclose. That’s about as weird as physicists only showing interest in what happens at room-temperature, even though most precise mathematical theories of the physical world can only be tested in extreme conditions (such as high-energy particle collisions). Just as we can expect that a few observations of the behavior of matter in extreme conditions will provide a lot more information than thousands of observations of matter in known “everyday” conditions, the ultimate nature of qualia is most likely to be understood by studying its properties in extreme (e.g. high-energy) neuronal environments.