We are Maggie & Anders. A mostly harmless Swedish old-timer couple only now beginning to discover the advanced incompetence that is the proto-science — or “alchemy” — of consciousness research. A few centuries ago a philosopher of chemistry could have claimed with a straight face to be quite certain that a substance with negative mass had to be invoked to explain the phenomenon of combustion. Another could have been equally convinced that the chemistry of life involves a special force of nature absent from all non-living matter. A physicist of today may recognize that the study of consciousness has even less experimental foundation than alchemy did, yet be confident that at least it cannot feel like somethingto be a black hole. Since, obviously, black holes are simple objects and consciousness is a phenomenon which only emerges from “complexity” as high as that of a human brain.
Is there some ultimate substrate, basic to reality and which has properties intrinsic to itself? If so, is elementary sentience one of those properties? Or is it “turtles all the way down” in a long regress where all of reality can be modeled as patterns within patterns within patterns ending in Turing-style “bits”? Or parsimoniously never ending?
Will it turn out to be patterns all the way down, or sentience all the way up? Should people who believe themselves to perhaps be in an ancestor simulation take for granted that consciousness exists for biologically-based people in base-level reality? David Chalmers does. So at least that must be one assumption it is safe to make, isn’t it? And the one about no sentience existing in a black hole. And the one about phlogiston. And the four chemical elements.
This really is good material for silly comedy or artistic satire. To view a modest attempt by us in that direction, please feel encouraged to enjoy this youtube video we made with QRI in mind:
When ignorance is near complete, it is vital to think outside the proverbial box if progress is to be made. However, spontaneous creative speculation is more context-constrained than it feels like, and it rarely correlates all that beautifully with anything useful. Any science has to work via the baby steps of testable predictions. The integrated information theory (IIT) does just that, and has produced encouraging early results. IIT could turn out to be a good starting point for eventually mapping and modeling all of experiential phenomenology. For a perspective, IIT 3.0 may be comparable to how Einstein’s modeling of the photoelectric effect stands in relation to a full-blown theory of quantum gravity. There is a fair bit of ground to cover. We have not been able to find any group more likely than the QRI to speed up the process whereby humanity eventually manages to cover that ground. That is, if they get a whole lot of help in the form of outreach, fundraising and technological development. Early pioneers have big hurdles to overcome, but the difference they can make for the future is enormous.
For those who feel inspired, a nice start is to go through all that is on or linked via the QRI website. Indulge in Principia Qualia. If that leaves you confused on a higher level, you are in good company. With us. We are halfway senile and are not information theorists, neuroscientists or physicists. All we have is a nerdy sense of humor and work experience in areas like marketing and planetary geochemistry. One thing we think we can do is help bridge the gap between “experts” and “lay people”. Instead of “explain it like I am five”, we offer the even greater challenge of explaining it like we are Maggie & Anders. Manage that, and you will definitely be wiser afterwards!
– Maggie & Anders
No qualia or your money back!
Tested for consciousness – zero
Don’t be afraid – she can’t feel anything!
Letter II: State-Space of Matter and State-Space of Consciousness
A core aspect of science is the mapping out of distributions, spectra, and state-spaces of the building blocks of reality. Naturally occurring states of things can be spontaneously discovered. To gain more information about them, one can experimentally alter such states to produce novel ones, and then analyze them in a systematic way.
The full state-space of matter is multidimensional and vast. Zoom in anywhere in it and there will be a number of characteristic physics phenomena appearing there. Within a model of the state-space you can follow independent directions as you move towards regions and points. As an example, you can hold steady at one particular simple chemical configuration. Diamond, say. The stable region of diamond and its emergent properties like high hardness extends certain distances in other parameter directions such as temperature and pressure. The diamond region has neighboring regions with differently structured carbon, such as graphite. Diamond and graphite make for an interesting case since the property of hardness emerges very differently in the two regions. (In the pure carbon state-space the dimensions denoting amounts of all other elements can be said to be there but set to zero). Material properties like hardness can be modeled as static phenomena. According to IIT however, consciousness cannot. It’s still an emergent property of matter though, so just stay in the matter state-space and add a time dimension to it. Then open chains and closed loops of causation emerge as a sort of fundamental level of what matter “does”. Each elementary step of causation may be regarded to produce or intrinsically be some iota of proto-experience. In feedback loops this self-amplifies into states of feeling like something. Many or perhaps most forms of matter can “do” these basic things at various regions of various combinations of parameter settings. Closed causal loops require more delicate fine-tuning in parameter space, so the state-space of nonconscious causation structure is larger than that of conscious structure. The famous “hard problem” has to do with the fact that both an experientially very weak and a very strong state can emerge from the same matter (shown to be the case so far only within brains). A bit like the huge difference in mechanical hardness of diamond and graphite both emerging from the same pure carbon substrate (a word play on “hard” to make it sticky).
By the logic of IIT it should be possible to model (in arbitrarily coarse or fine detail) the state-space of all conscious experience whose substrate is all possible physical states of pure carbon. Or at room temperature in any material. And so on. If future advanced versions of IIT turn out to be a success then we may guess there’ll be a significant overlap to allow for a certain “substrate invariance” for hardware that can support intelligence with human-recognizable consciousness. Outside of that there will be a gargantuan additional novel space to explore. It ought to contain maxima of (intrinsic) attractiveness, none of which need to reside within what a biological nervous system can host. Biological evolution has only been able to search through certain parts of the state-space of matter. One thing it has not worked with on Earth is pure carbon. Diamond tooth enamel or carbon nanotube tendons would be useful but no animal has them. What about conscious states? Has biology come close to hit upon any of the optima in those? If all of human sentience is like planet Earth, and all of Terrestrial biologically-based sentience is like the whole Solar System, that leaves an entire extrasolar galaxy out there to explore. (Boarding call: Space X Flight 42 bound for Nanedi Settlement, Mars. Sentinauts please go to the Neuralink check-in terminal).
Of course we don’t currently know how IIT is going to stand up, but thankfully it does make testable predictions. There is, therefore, a beginning of something to be hoped for with it. In a hopeful scenario IIT turns out to be like special relativity, and what QRI is reaching for is like quantum gravity. It will be a process of taking baby steps, for sure. But each step is likely to bring benefits in many ways.
Our long-term vision is to end suffering. To destroy hell, and to build tools for exploring all the bright futures which come after. To take the Buddha’s vision of 2600 years ago, update it with advanced theory and technology, and make it real for all creatures.
Our medium-term goal is to build a ‘full-stack’ approach to the mind and brain, centered around emotional valence. Critically, better philosophy should lead to better neuroscience, and better neuroscience should lead to better neurotechnology. We’re skeptical of any philosophical approaches that don’t try to “pay rent” by building empirically useful things.
Our short-term deliverables are to refine our tools for evaluating EEG readings of emotionally-intense states (e.g. 5-MeO-DMT), build a hardware platform for non-invasive precision brain stimulation, and release an updated version of our full-stack theory of brain dynamics (‘neural annealing’).
We think we’re on track for all of these goals. On one level this is a huge claim- but as Archimedes said, “Give me a place to stand, and a lever long enough, and I will move the world.” We think we have that lever, and we’re building a place to stand.
Progress to date
Philosophy: over the course of the last few years, we’ve imported and integrated many key insights from our research lineages – in aggregate we believe these form the world’s best map of how to not get confused in navigating the formalization of consciousness. Our paradigm (laid out in Principia Qualia) builds on top of these lineages, and our core philosophical result is the Symmetry Theory of Valence (STV), an information-theoretic approach towards understanding how pleasant an experience is. (STV is important because it’s such a crisp and theoretically significant hypothesis: if it’s right, and we can prove it, the world will shift overnight.) We’ve also done significant philosophical research on the phenomenological nature of time, DMT states, and the logarithmic nature of pain and pleasure, to pick a few topics. Read more.
Organization: This year saw QRI run a successful summer internship program in San Francisco with 3 superstar interns, Andrew and Kenneth from Harvard and Quintin from Washington University. More recently, we spent a month in Boston on a ‘work sprint’, and ended up giving 3 talks at Harvard and 1 at MIT, with plans to do more at various Ivies this fall. One of the most fun outputs of this summer was Zuck’s QRI explainer video (4.5 minutes).
I’m ridiculously proud of everything we’ve accomplished — a few years ago, QRI was mostly a promissory note that a formalist approach to consciousness could produce something interesting. Today, I can say with a straight face that QRI is one of the premier consciousness research centers in the world, releasing top-tier cross-disciplinary research every few months.
Our current push is centered on empirically validating the Symmetry Theory of Valence (STV) and integrating it with our neuroscience stack. This involves releasing an updated version of our ‘neural annealing’ neuroscience paradigm, building a hardware platform for patterned stimulation, and refining our “CDNS” algorithm to work with EEG, with an eye toward using 5-MeO-DMT EEG data to evaluate STV. It looks like 2020 will be a breakout year for us.
What we need
Frankly speaking, we need your support. Building things is hard, and what we’re doing has never been done before. Our core bottlenecks are money, people, and executive function.
Money: so far, QRI has been mostly self-funded from the co-founders’ personal savings. I’m proud of everyone’s commitment, but this is unsustainable, especially as we attempt more ambitious projects. At this point, we have enough results to make a firm case that supporting QRI is likely to produce an awesome amount of value for the world, potentially literally the most leveraged philanthropic effort existing today. Frankly speaking the future we’re building won’t get built if we don’t secure funding, and I ask for your help and generosity. You can donate here. (Thank you to our key supporters this year! Your efforts allowed us to onboard three amazing interns and will support building things this Fall.)
People: high-quality organizations are incredibly hungry for high-quality people. QRI is no exception. If you think you have something to offer, please get in touch about collaboration, volunteering, research, and so on. Importantly, we don’t just need researchers: we’re hungry for operations people, and looking for help with getting on podcasts (speaking with Sam Harris and Joe Rogan would both be big wins!), organizing or getting speaking engagements (especially in the Bay), and even small, fun projects like making a series of QRI meme t-shirts.
Executive function: there’s a natural tension between research and organization-building. Paul Graham talks about this in Maker’s Schedule, Manager’s Schedule; research needs big uninterrupted chunks of time, whereas management and outreach involves lots of small tasks. Speaking personally, I struggle with keeping up with all our inquiries while also doing ‘deep work’. I would offer three thoughts to potential volunteers:
Please have patience if we don’t get back to you right away. We’re juggling as best we can!
When possible, we absolutely love it when people can figure out their own way to help — I can think of few things more pleasant to see in my inbox than someone sharing a “by the way, I made this” link to e.g. a nice HTML version of Principia Qualia, an explainer video for various QRI concepts, a deep review of our experimental method, etc.
One of the highest leverage ways to help is to build infrastructure for us. E.g., if you’re familiar with the main themes of our work and want to be a volunteer coordinator for us, that would be an amazing force-multiplier.
I am incredibly proud of what we’ve done so far, and incredibly excited about the future. We will need your help to build it.
The Bay Area Rapid Transit (BART) is often criticized for its loudness. According to measurements made in 2010, the noise reaches up to 100 decibels, enough to cause permanent hearing loss in the long term. This is why you should always wear earplugs on the BART, which can decrease the volume by up to 30 or so decibels, making it tolerable and harmless.
And while pointing out that BART gets really loud is indeed important, I would claim that there is something even more important to note. Namely, that BART is not merely loud, but it is also distinctly dissonant. Talking only about the stretch that goes from Millbrae to Embarcadero, an analysis I conducted reveals that the single worst period of dissonance happens on the ride from Glen Park to Balboa Park (at around the 20 second mark after one starts). If you are curious to hear it, you can check it out for yourself here. That said, I do not recommend listening to that track on repeat for any length of time, as it may have a strong mood-diminishing effect.
The full Glen-Balboa ride.
Zooming in the most dissonant region. Notice the hellstorm of dissonant pairs of tones.
Too bad that some of the beautiful patterns found at the entrance of the Balboa Park BART station are not equally matched by beautiful sounds in the actual ride:
Balboa Park has some beautiful visual patterns (useful for psychophysics).
Ultimately, dissonance might be much more important than loudness, insofar as it tracks the degree to which environmental sound directly impacts quality of life. Thus, in addition to metrics that track how loud cities are, it might be a good addition to our sound contamination measurements to incorporate a sort of “dissonance index” into our calculations.
A General Framework for Valence
At the Qualia Research Institute we have pointed that the connection between dissonance and valence may not be incidental. In particular, we suggest that it falls out as a possible implication of the Symmetry Theory of Valence (STV). The STV is itself a special case of the general principle we call Valence Structuralism, which claims that the degree to which an experience feels good or bad is a consequence of the structures of the object whose mathematical properties are isomorphic to a system’s phenomenology. The STV goes one step further and suggests that the relevant mathematical property that denotes valence is the symmetry of this object.
In Quantifying Bliss, we postulated that a general framework for describing the valence of an experience could be constructed in terms of Consonance-Dissonance-Noise Signatures (“CDNS” for short). That is, the degree to which the given states have consonance, dissonance, and noise in them. As an implication of the Symmetry Theory of Valence we postulate that consonance will directly track positive valence, dissonance negative valence, and noise neutral valence. But wait, there is more! Each of these “channels” themselves have a spectrum. That is to say, one could be experiencing high degrees of low-frequency-dissonance at the same time as high-frequency-consonance and maybe a general full-spectrum background noise. Any combination is possible.
Richard Wu has a good article on his experience with tinnitus. One of the things that stands out about it is the level of detail used to describe his tinnitus. At its worst, he says, he does not only experience a single sound, but several kinds at once:
By the way, its getting louder isn’t even the worst. Sometimes I develop an entirely new tinnitus. […] Today, I have three:
A very high-pitched CRT monitor / TV-like screech (similar to the one in the video).
A deep, low, powerful rumbling.
A mid-tone that adjusts its volume based on external sounds. If my environment is loud, it will be loud; if my environment is quiet, it will ring more softly.
As in the case of the BART and how people complain about how loud it is while missing the most important piece (its dissonance), tinnitus may have a similar reporting problem. What makes tinnitus so unbearable might not be so much the fact that there is always a hallucinated sound present, but rather, that such a sound (or clusters of sounds) is so unpleasant, distracting, and oppressive. The actual texture of tinnitus may be just as, if not more, important than its mere presence.
We believe that Valence Structuralism and in particular the Symmetry Theory of Valence are powerful explanatory frameworks that can tie together a wide range of disparate phenomena concerning good and bad feelings. And if true, then for every unpleasant experience we may have, a reasonable thing to ask might be: in what way is this dissonant? For example: Depression may be a sort of whole-body low-frequency dissonance (similar to, but different in texture, to nausea). Anxiety, on the other hand, along with irritation and anger, might be a manifestation of high-frequency dissonance.
Likewise, whenever a good or pleasant feeling is found, a reasonable question to ask is: in what ways is this consonant? Let’s think about the three kinds of euphoria uncovered in State-Space of Drug Effects. Fast euphoria (stimulants, exercise, anticipation, etc.) might be what high-frequency consonance feels like. Slow euphoria (relaxation, opioids, etc.) might be what low-frequency consonance feels like. And what about spiritual euphoria (what you get by thinking about philosophy, tripping, and taking dissociatives)? Well, however trippy this may sound, it might well be that this is a sort of fractal consonance, in which multiple representations of various spatio-temporal resolutions become interlocked in a pleasant dance (which may, or may not, allow you to process information more efficiently).
Now what about noise? Here is where we place all of the blunting agents. The general explanation for why anti-depressants of the SSRI variety tend to blunt feelings might be because their very mechanism of action is to increase neuronal noise and thus reduce the signal-to-noise ratio. Crying, orgasm, joy, and ragegasms all share the quality of being highly symmetric harmonic states, and SSRIs having a generalized effect of adding noise to one’s neuronal environment would be expected to diminish the intensity (and textural orderliness) of each of these states. We also know that SSRIs are often capable of reducing the subjective intensity of tinnitus (and presumably the awfulness of BART sounds), which makes sense in this framework.
The STV would also explain MDMA’s effects as a generalized reduction in both dissonance and noise across the full spectrum, and a generalized increase in consonance, also across the full spectrum. This would clarify the missing link to explain why MDMA would be a potential tool to reduce tinnitus, not just emotional pain. The trick is that both perceptual dissonance and negative affect may have a common underlying quality: anti-symmetry. And MDMA being a chief symmetrifying agent takes it all away.
Many further questions remain: what makes meaningful experiences so emotionally rich? Why do some people enjoy weird sounds? Why is emo music so noisy? What kind of valence can be experienced when one’s consciousness has acquired a hyperbolic geometry? I will address these and many other interesting questions in future posts. Stay tuned!
Michale Johnosn and I will be hanging out at the EA Global (SF) 2017 conference this weekend representing the Qualia Research Institute. If you see us and want to chat, please feel free to approach us. This is what we look like:
At EAGlobal 2016 at Berkeley
I will be handing out the following flyer:
Mental Health as an EA Cause Area: Key Questions
What makes a state of consciousness feel good or bad?
What percentage of worldwide suffering is directly caused by mental illness and/or the hedonic treadmill rather than by external circumstances?
Below I provide a summary of the Quantifying Bliss talk at Consciousness Hacking (video; 360 degree live feed record), which took place on June 7th 2017. I am currently working on a longer and more precise treatment of the topic, which I will be posting here as well. That said, since the talk already makes clear, empirically testable predictions, I decided to publish this summary as soon as possible. After all, there is only a small window of opportunity to publish one’s testable predictions online before the experiment is run and they turn into “retrodictions”. By writing this out and archiving it on time I’m enabling future-me to say “called it!” (if the results are positive) or “at least I tried” (if the experiment fails to show the predicted effects). Better do this quick, then, for science!
The Purpose of Life
We begin by asking the question “what is the purpose of life?”. In order to give a sense for where I am coming from, I explain that I think that the purpose of life is…
To Understand the Universe
To be Happy, and Make Others Happy
I admit that for the first half of my life I thought that the only purpose of life was to understand the universe. If anything, in light of this exclusive goal, happiness could be seen as a temporary distraction rather than something to pursue for its own sake. Thankfully, as a teenager I was exposed to philosophy of mind, was introduced to meditation, and experimented with psychedelics, all of which pointed me to the fact that (a) we don’t understand consciousness yet, and (b) happiness is really a lot more important than we usually think, even if one is only concerned with the most theoretical and abstract level of understanding possible.
I now regard “to understand the universe” and “to be happy and make others happy” on an equal footing. More so, these two life goals complement each other. On the one hand, understanding the universe will allow you to figure out how to make anyone happy. And on the other hand, being happy and making others happy can allow you to stay motivated in order to figure out the nature of reality. Hence one can think of these two life goals as synergistic rather than as being in opposing camps (of course, at the edges, one will be forced to choose one over the other, but we are nowhere near the point where this is a concern).
By taking these two “purposes of life” seriously we are then faced with a crucial question: What makes an experience valuable? In other words, for someone who is both trying to understand the universe and trying to make its inhabitants as happy as possible, the question “how do you measure the value of an experience?” becomes important.
At Qualia Computing we generally answer that question using the following criteria
Does it feel good? (happy, loving, pleasant)
Does it make you productive (in a good way)?
Does it make you ethical?
That is to say, the value that we assign to an experience is guided by three criteria. In brief, a valuable experience is one that feels good (i.e. has positive hedonic tone), improves your productivity (in the sense of helping you pursue your own values effectively), and makes you more ethical – both towards yourself and others. That said, for the purpose of this talk, I make it explicit that I will only discuss how to measure (1). In other words, we will concern ourselves with what makes an experience feel good; ethics and productivity are discussed elsewhere.*
What is Bliss?
So what makes an experience feel good? The “feel good” quality of an experience is usually called valence in psychology and neuroscience (also described as the “pleasure-pain axis”). This quality is to be distinguished from arousal, which refers to the amount of energy expressed in an experience. Four examples: Excitement is a high-valence, high-arousal state. Serenity is a high-valence, low-arousal state. Anxiety is low-valence, high-arousal. And depression low-valence, low-arousal.
For some people valence and arousal are correlated (either negatively or positively as shown by Peter Kuppens). Likewise, one’s culture can have a large influence on the way one conceptualizes of valence (or ideal affect, as demonstrated in the extensive work of Jeanne Tsai). That said, valence is not a cultural phenomenon; even mice can experience negative and positive valence.
Even though valence and arousal do seem to explain a big chunk of the differences between emotions, we can nonetheless find many cases where the “texture” of two emotions feel very different even though their valence and their arousal are similar. Hence we ask ourselves: How do we explain and characterize the textural differences between such emotions?
And across all of the possible intensely blissful states on offer (encompassing all of the possible inner meanings present), what exactly is shared between them all at their very core?
Some interpret holistic feelings of wellbeing as a sort of spiritual signal. In this interpretation, feeling at a very deep level that the world is good, that things fall into place perfectly, that you don’t owe anything to anyone, etc. is a sign that you are on the right (spiritual) track. Undoubtedly many people use the (often extreme) positive shift in their valence upon religious conversion as evidence of the validity of their choice. Intense positive valence may not throw Bayesian purists off-balance, but for the rest of the world, blissful experiences are often found as cornerstones of worldviews.
Other people say that bliss is “just chemicals in your brain”. Some claim that it’s more a matter of the functional state of your pleasure centers (themselves affected by dopamine, opioids, etc.) rather than the chemicals themselves. Many others are focused on what usually triggers happiness (e.g. learning, relationships, beliefs, etc.) rather than on what, absolutely, needs to happens for bliss to take place in the simplest experiential terms possible. Most who study this closely become mystics.
Could it be that there’s something structural that makes the experiences feel good? Let’s say that there exists a good-fitting mathematical object that translates brain states to experiences. What mathematical property of that object would valence look like? Our proposal is very simple. In some sense it is the simplest possible theory for the important theory of consciousness. We propose thesymmetry theory of valence.
(The important theory of consciousness is the question that asks why experience feels good and/or bad, vs. e.g. the hard problem of consciousness, why consciousness exists to begin with).
The Symmetry Theory of Valence
9. Symmetry Theory of Valence
We are pretty confident that consciousness is a real and a measurable phenomenon. That’s why Consciousness Hacking is such a good venue for this kind of discussion. Because here we can talk freely about the properties of consciousness without getting caught up about whether it exists at all. Now, symmetry is a very general term, how is that precise?
Harmony feels good because it’s symmetry over time. In reality, our moments of experience contain a temporal direction. I call this a pseudo-time arrow, since its direction is likely encoded in the patterns of statistical independence between the qualia experienced. And by manipulating the symmetrical connectivity of the micro-structure of one’s consciousness, one can change the perception of time. It’s a change in the way one evaluates when one is and how fast one is going.
In this model, the pleasure centers would work as “tuning knobs” of harmonic patterns. They are establishing the mood, the underlying tone to which the rest needs to adapt. And the emotional centers, including the amygdala, would be strategically positioned to add anti-symmetry instead. Hence, in this framework we would think of boredom is an “anti-symmetry” mechanism. It prevents us from getting stuck in shallow ponds, but it can be nasty if left unchecked. Cognitive activity may be in part explained by differences in boredom thresholds.
In her talk she shows how one can measure the various “pure harmonics” in a given brain. The core idea is that brain activity can be interpreted as a weighted sum of “natural resonant frequencies” for the entire connectome (white matter tracks together with the grey matter connections). They actually take the physical structure of a mapped brain and simulate the effect of applying the excitation-inhibition differential equations known for collective neural activity propagation. Then they infer the presence and prevalence of these “pure harmonics” in a brain at a given point in time using a probabilistic reconstruction.
Chladni plates here are a wonderful metaphor for these brain harmonics. This is because the way the excitation-inhibition wavefront propagates is very similar in both Chladni plates and human brains. In both cases the system drifts slowly within the attractor basin of natural frequencies, where the wavefront wraps around the medium an integer number of times. I was in awe to see her approach applied to psychedelic research. After all, Qualia Computing has indeed explored harmonic patterns in psychedelic experiences (ex. 1, ex. 2, ex. 3), and the connection was made explicit in Principia Qualia (via the concept of neuroacoustic modulation).
But how do these harmonics look like in the brain? Show me a brain!
Notice the traveling wave wrapping around the brain an integer number of times in each of these numerical solutions (source). The work by these labs is incredible, and they seem to show that the brain’s activity can be decomposed into each of these harmonics.
At the Psychedelic Science 2017 conference, Selen Atasoy explained that very low frequency harmonics were associated with Ego Dissolution in the trials that they studied. She also explained that emotional arousal, here defined as one’s overall level of energy in the emotional component (i.e. anxiety and ecstasy vs. depression and serenity), also correlated with low frequency harmonic states. On the other hand, high valence states were correlated with high frequency brain harmonics.
These empirical results are things that I claim we could have predicted with the symmetry theory of valence. I then thought to myself: let’s try to come up with other predictions. How should we consider the mixture of various harmonics, beyond merely their individual presence? How can we reconstruct valence from this novel data-structure for representing brain-states?
The Algorithm for Quantifying Bliss
Starting my reasoning from first principles (sourced from the Symmetry Theory of Valence), the natural way to take a data-structure that represents states of consciousness and recover its valence (in cases where samples occur across time in addition to space), is to try to isolate the noise, then proceed to quantify the dissonance, and what remains becomes what’s consonant. Basically, one will estimate the rough amount of symmetry (over time), as well as the degree of anti-symmetry, and the level of noise total.
In other words, I prophesize that we can get an “affective signature” of any brain state by applying an algorithm to fMRI brain recordings in order to estimate the degree of (1) consonance, (2) dissonance, and (3) noise within and across the brain’s natural harmonic states. This will result in what I call “Consonance-Dissonance-Noise Signatures” of brain states (“CDNS” for short) consisting of three histograms that describe the spectra of consonance, dissonance, and noise in a given moment of experience. The algorithm to arrive at a CDNS of a brain state is as follows:
Remove some of the noise in the brain state by applying the technique in Atasoy (2016) and recovering the distribution of the best approximation possible for the harmonics present (you may apply some further denoising on the harmonics when taken as a collective). Then estimate the total dissonance of the combination of harmonics by taking each pair of harmonics and quantifying their mutual dissonance. Finally, subtract the dissonance from “all of the interactions that could have existed” and what’s left ends up being the consonance. This way you obtain a Consonance, Dissonance, Noise Signature.
21. The Algorithm
Each of these three components will have their associated spectral power distribution. The noise spectrum is obtained during the first denoising step (as whatever cannot be explained by the harmonic decomposition). Then the dissonance spectrum is a function of the minimum power of pairs of harmonics that exist within the critical band of each other (see slides 18; possibly upgraded by 20), as well as the frequencies of the beating patterns.
In order to quantify dissonance we use a method that may end up being simpler than what you need to calculate dissonance for sound! E.g. in Quantifying the Consonance of Complex Tones With Missing Fundamentals (Chon 2008) we learn that the human auditory system may at times detect dissonance even when there is no actual dissonance in the input. That is, there are auditory illusions pertaining to valence and dissonance. Based on the missing fundamental one can create ghost dissonance between tones that are not even present. That said, quantifying dissonance in a brain in terms of its harmonic decomposition may be easier than quantifying dissonance in auditory input, precisely because the auditory input (and any sensory input for that matter) contains many intermediary pre-processing steps. The auditory system is relatively “direct” when compared to, e.g. the visual system, but you will still see some basic signal processing done to the input before it influences brain harmonics. The sensory systems, being adapted to meet the criteria of both interfacing with a functioning valence system and representing the information adequately (in terms of the real-world distribution of inputs) serve the function of translating the inputs into usable signals. I.e. frequency-based descriptions, often log-transformed, in order to arrive at valence gradients. For this reason, the algorithm that describes how to extract valence out of a brain state may turn out to be simpler than what you need to predict the hedonic quality of patterns of sound (or sight, touch, etc).
In brief, we propose that we can compute the approximate amount of dissonance between these harmonics by seeing how close they are in terms of spatial and temporal frequencies. If they are within the critical window then they will be considered as dissonant. There is likely to be a peak dissonance window, and when any pair of harmonic states live within that window, then experiencing both at once may feel really awful (to quantify such dissonance more precisely we would use a dissonance function as shown in Chon 2008). If indeed symmetry is intimately connected to valence, then highly anti-symmetrical states such as what’s produced by overlapping brain harmonics within the critical band may feel terrible. Remember, harmony is symmetry over time. So dissonance is anti-symmetry over time. It’s worth recalling, though, that in the absence of dissonance and noise, by default, what remains is consonance.
Visualizing Emotions as CDNS’s of States of Consciousness
Above you can find two ways of visualizing a CDNS. Before we go on to the predictions, here we illustrate how we think that we will be able to seeat a glance the valence of a brain with our method. The big circle shows the dissonance and consonance for each of the brain harmonics (the black dots surrounding the circle represent the weights for each state). If you want the overall dissonance in a given state, you add up the red-yellow arrows, whereas if you want the total consonance, you add the purple-light-blue arrows. The triangles on the right expand upon the valence diagram presented in Principia Qualia. Namely, we have a blue (positive valence/consonant), red (negative valence/dissonant), and grey (neutral valence/noise) component in a state of consciousness. Each of these components has a spectrum; the myriad textures of emotional states are the result of different spectral signatures for hedonically loaded patterns.
We predict that intense emotions/experiences reported on psychedelics will result in states of consciousness whose harmonic decomposition will show a high amount of energy to be found in the pure harmonics (this was already found in 2017 as explained in the presentation, so let’s count that as a retrodiction). People who report being “very high” will have particularly high amounts of energy in their pure harmonics (as opposed to more noisy states).
The predicted valence for their experiences will be a function of the particular patterns (in terms of relative weights) of the various harmonics. Those which generate highly harmonic CDNS will be blessed with high valence experiences. And those who experience high dissonance, as empirically measured, will report negative feelings (e.g. fear, anxiety, nausea, weird and unpleasant body load, etc). In particular, we can explore the shape of highly harmonic states. In this framework, MDMA would be seen as likely to work by increasing the energy expressed by an exceptionally consonant set of harmonics in the brain.
A point to make here is that predicting “pure harmonics” on psychedelics (evidently simple and ordered patterns), would seem to go counter to the recently accrued empirical data concerning entropy in the tripping brain.** But we also know that the psychedelic brain can produce ridiculously self-similar near-informationless yet highly intense moments of experience preceded by a symmetrification process. Indeed, there are several symmetric attractors for the interplay of awareness and attention at various levels of “consciousness energy” and quality of mood. These states, in turn, not only are hedonically charged, but also allow the exploration of high-energy qualia research (since the implicit symmetry provides an energy seal). Highly energetic states of consciousness can be encapsulated in a highly symmetrical network of local binding. More about this in a future article.
On the other hand, we predict that people on SSRIs will show an enhanced amount of noise in their CDNS. A couple of slides back, this was represented as a higher loading of activity in the grey component of the triangular visualization of a CDNS. Likewise, some drugs will have various effects on the CDNS, such as stimulants inducing more consonance in high frequencies, whereas opioids and hypnotics having signatures of inducing high consonance in the low frequencies.
Summary of Predictions About Drug Effects
Psychedelic substances will increase the overall power of the brain’s pure harmonics, and thus result in a CDN Signature characterized by: (a) high consonance of all frequencies, (b) high dissonance of all frequencies, and (c) low noise of all frequencies. Criticality will be observed by way of the CDNS having high variance.
MDMA will produce a very specific range of states that have on the one hand very pure harmonic states of high frequencies, and on the other, very small collective dissonance and noise. In other words: (a) high amounts of high-frequency consonance, (b) low amounts of dissonance of all frequencies, and (c) low noise of all frequencies.
Any “affect blunting” agent such as SSRIs, ibuprofen, aspirin, acetaminophen, and agmatine, will produce CDNS characterized by: (a) reduced consonance of all frequencies, (b) reduced dissonance of all frequencies, and (c) increased noise in either some or all frequencies. We further hypothesize that different antidepressants (e.g. citalopram vs. fuoxetine) will look the same with respect to reducing the C and D components, but may have differences in the way they increase the N spectrum.
Opioids in euphoric doses will be found to (a) increase low frequency consonance, (b) decrease dissonance for all frequencies but especially the high frequencies, and (c) slightly increase noise across the board.
Stimulants will be found to (a) increase medium and high frequency consonance, (b) leave dissonance fairly unaltered, and (c) reduce noise for all frequencies but especially those in the upper end of the spectrum.
Predictions About Emotions
For now, here are the specific predictions concerning emotions that I am making:
The energy of the consonant (C) component of a CDNS will be highly correlated with the amount of euphoria (pleasure, happiness, positive feelings, etc.) a person is experiencing.
The energy of the dissonant (D) component will have a high correlation with the amount of dysphoria (pain, suffering, negative feelings, etc.) a person feels.
The energy of the noise (N) component will be correlated with flattened affect and blunted valence (i.e. feeling neither good nor bad, like there is a fog that masks all feelings).
If one creates a geometric representation of the relationships between various brain states using their respective CDNS similarities as a distance metric for emotional states using Multi-Dimensional Scaling (MDS) techniques, one will be able to recover a really good approximation of the empirically-derived dimensional models of emotions (cf. dimensional models of emotion; Wire-heading Done Right). In other words, if you ask your participants to tell you how they feel during the fMRI sessions and then associate those emotions to their instantaneous CDNS, and then you apply multidimensional scaling to the resulting CDNS, you will be able to recover a good dimensional picture of the state-space of emotions. I.e. “subjective similarity between emotions” will be closely tracked by the geometric distance between their corresponding CDNS:
Applying MDS scaling to the C component of the CDNS will result in a better characterization of the differences between positive emotions.
Applying MDS to the D component will result in a better characterization of the differences between negative emotions. And,
Applying MDS to the N component will result in a better characterization of the differences between valence-neutral emotions.
The Future of Mental Health
Sir, your 17th harmonic is really messing up the consonance of your 19th harmonic, and it interrupts the creative morning mood you recently enjoyed. I suggest taking 1mg of Coluracetam, listening to a selection of Diamond songs, and RD23 [stretching exercise]. Here’s your expected CDNS.
The “clinical phenomenologist” of the year 2050 might look into your brain harmonics, and try to find the shortest paths to nearby state-spaces with less chronic dissonance, fishing for high-consonance attractors with large basins to shoot for. The qualia expert would go on to provide you various options that may improve all sorts of metrics, including valence, the most important of them all. If you ask, your phenomenologist can give you trials for fully reversible treatments. You sample them in your own time, of course, and test them for a day or two before deciding whether to use these moods for longer.
Personalized Harmonic Retuning
I assume that people will be given just about enough retuning to get back to their daily routines as they themselves prefer them, but without any sort of nagging dissonance. Most people will probably continue on with their preference architectures relatively unchanged. Indeed, that will be a valued quality for a personalized harmonic retuning product. Having adequate mood devices that don’t mess up your existing value system might eventually become a highly understood, precision-engineered aspect of mainstream mental health. At least compared to the current (pre-psychedelic re-adoption 2017) paradigms. Arguably, even psychedelic therapy is pretty blunt in a way. Not in the sense of blunting the hedonic quality of your experience (on the contrary). But in the sense of applying the harmonization process indiscriminately.
For the psychonauts (hopefully they are not too rare by then), who still want to investigate consciousness even though human life is already full of love (in the future), we will have a different arrangement. They are free to explore themselves while being part of a research institute. Indeed, pursuing the purpose of understanding the big picture (including consciousness) will require the experimental method. More so, exploring the state-space of consciousness will, for the foreseeable future, be a way to find new ways of making others happy. People will continue to explore alien state-spaces in the search of highly-priced high-valence states. At least for some scores of generations valence engineering is bound to continue to be economically profitable. As we discover new drugs, new treatments, new philosophical trances, new interpretations and expressions of love, and so on, the economy will adapt to these inventions. We already live in an informational economy of states of consciousness, and the future is likely to be like that as well. Except that consciousness technologies will be immensely more powerful.
Barring the unlikely emergence of anti-hedonist Spartan self-punishing transhumanist social movements enabled with genetic technology, I don’t anticipate major obstacles in the eventual widespread use of mood organs. In fact, the wide adoption of SSRIs in some pockets of society shows that the general public is willing and interested in minor self-adjustments to deal with chronic negativity. Hedonic technology is in its early days, but with a root understanding of the nature of valence, the sky is the limit.
SSRIs have an overall effect of blunting one’s experience at pretty much every level imaginable. Usually just a little, enough to help people re-establish a new order between their harmonics, in a more noisy, less intense range of moods. Some people may benefit from this sort of intervention. Now, also it’s worth pointing out the possible side effects, which have the common theme of reducing the structural integrity of the micro-structure of consciousness. Thus, the highly ordered pleasant and unpleasant experiences get softened. Whether this generalized softening is beneficial depends on many factors. Psychonauts usually avoid them as much as possible in order to protect the psychoacoustical potential of their brain, were they to desire to use this potential sometime in the future.
17 wallpaper symmetry groups
Taken at Psychedelic Science 2017
Stimuli with tracers
Psychedelics, in this framework, would be interpreted as neuroacoustic enhancers. These agents trigger, via control interruption, a more “echo-ey acoustic environment for one’s consciousness”. Meaning, any qualia experienced under the influence lasts for longer (the decay of intensity of experience as a function of time since presentation of stimuli becomes a lot “slower” or “fatter”). On high doses, the intensity of each component of a cycle of an experience can feel just as intense, and thus one might find oneself unable to locate oneself in time. Sometimes intense feelings return cyclically, and ultimately at strong doses, experiential feedback dominates every aspect of one’s experience, and there isn’t anything other than standing waves of synesthetic psychedelic feelings.
Peak symmetry states with their associated valence would be predicted to be far more accessible on highly harmonic states of consciousness. So psychedelics and the like could be carefully used to explore the positive extreme of valence: Hyper-symmetrical states. That said, for responsible exploration, a euphoriant will be needed to prevent negative psychedelic experiences.
A Harmonic Society is a place where everyone recognizes what makes other sentient beings love life. It’s a place in which everyone deeply understands the valence landscapes of other beings. People in such a society would know that a zebra, an owl, and a salamander all share the pursuit of harmonic states of consciousness, albeit in their own, often different-looking, state-spaces of qualia. We would understand each other far more deeply if we saw each other’s valence landscapes as part of a big state-space of possible preference architectures. Ultimately, the pursuit of existential bliss and the ontological question (why being?) would incite us to explore each other through consciousness technologies. We will have an expanded state-space of available possible moods, both individual and collective, increasing our chances of finding a new revolutionary understanding of consciousness, identity, and what’s possible for post-hedonium societies.
**The Entropic Brain theory portrays psychedelia in terms of increased entropy, but also, and most importantly, focuses on criticality. Just thinking about entropy would not distinguish between adding white noise and adding interesting patterns. In other words, from the point of view of simple entropy without any spectral (or nonlinear) analysis, SSRIs and psychedelics are doing pretty much the same thing. So the sense of “entropy” that matters will have to be a lot more detailed, showing you in what way the information encoded in normal states of consciousness changes as a function of entropy added in various ways.
On psychedelics one does indeed find highly ordered crystal-like states of consciousness (which I’ve described elsewhere as peak symmetry states), and as far as we know those states are also some of the most positively hedonically charged. Hence, at least in terms of describing the quality of the psychedelic experience, leaving symmetry out would make us miss an important big-picture kind of quality for psychedelics in general and their connection to valence variance.
***→ see quote →
My hypothesis strongly implies that ‘hedonic’ brain regions influence mood by virtue of acting as ‘tuning knobs’ for symmetry/harmony in the brain’s consciousness centers. Likewise, nociceptors, and the brain regions which gate & interpret their signals, will be located at critical points in brain networks, able to cause large amounts of salience-inducing antisymmetry very efficiently. We should also expect rhythm to be a powerful tool for modeling brain dynamics involving valence- for instance, we should be able to extend (Safron 2016)’s model of rhythmic entrainment in orgasm to other sorts of pleasure.
Extract from Principia Qualia (2016) by my colleague Michael E. Johnson (from Qualia Research Institute). This is intended to summarize the core ideas of chapter 2, which proposes a precise, testable, simple, and so far science-compatible theory of the fundamental nature of valence (also called hedonic tone or the pleasure-pain axis; what makes experiences feel good or bad).
VII. Three principles for a mathematical derivation of valence
We’ve covered a lot of ground with the above literature reviews, and synthesizing a new framework for understanding consciousness research. But we haven’t yet fulfilled the promise about valence made in Section II- to offer a rigorous, crisp, and relatively simple hypothesis about valence. This is the goal of Part II.
Drawing from the framework in Section VI, I offer three principles to frame this problem:
1. Qualia Formalism: for any given conscious experience, there exists- in principle- a mathematical object isomorphic to its phenomenology. This is a formal way of saying that consciousness is in principle quantifiable- much as electromagnetism, or the square root of nine is quantifiable. I.e. IIT’s goal, to generate such a mathematical object, is a valid one.
2. Qualia Structuralism: this mathematical object has a rich set of formal structures. Based on the regularities & invariances in phenomenology, it seems safe to say that qualia has a non-trivial amount of structure. It likely exhibits connectedness (i.e., it’s a unified whole, not the union of multiple disjoint sets), and compactness, and so we can speak of qualia as having a topology.
More speculatively, based on the following:
(a) IIT’s output format is data in a vector space,
(b) Modern physics models reality as a wave function within Hilbert Space, which has substantial structure,
(c) Components of phenomenology such as color behave as vectors (Feynman 1965), and
(d) Spatial awareness is explicitly geometric,
…I propose that Qualia space also likely satisfies the requirements of being a metric space, and we can speak of qualia as having a geometry.
Mathematical structures are important, since the more formal structures a mathematical object has, the more elegantly we can speak about patterns within it, and the closer our words can get to “carving reality at the joints”.
3. Valence Realism: valence is a crisp phenomenon of conscious states upon which we can apply a measure.
–> I.e. some experiences do feel holistically better than others, and (in principle) we can associate a value to this. Furthermore, to combine (2) and (3), this pleasantness could be encoded into the mathematical object isomorphic to the experience in an efficient way (we should look for a concise equation, not an infinitely-large lookup table for valence). […]
I believe my three principles are all necessary for a satisfying solution to valence (and the first two are necessary for any satisfying solution to consciousness):
Considering the inverses:
If Qualia Formalism is false, then consciousness is not quantifiable, and there exists no formal knowledge about consciousness to discover. But if the history of science is any guide, we don’t live in a universe where phenomena are intrinsically unquantifiable- rather, we just haven’t been able to crisply quantify consciousness yet.
If Qualia Structuralism is false and Qualia space has no meaningful structure to discover and generalize from, then most sorts of knowledge about qualia (such as which experiences feel better than others) will likely be forever beyond our empirical grasp. I.e., if Qualia space lacks structure, there will exist no elegant heuristics or principles for interpreting what a mathematical object isomorphic to a conscious experience means. But this doesn’t seem to match the story from affective neuroscience, nor from our everyday experience: we have plenty of evidence for patterns, regularities, and invariances in phenomenological experiences. Moreover, our informal, intuitive models for predicting our future qualia are generally very good. This implies our brains have figured out some simple rules-of-thumb for how qualia is structured, and so qualia does have substantial mathematical structure, even if our formal models lag behind.
If Valence Realism is false, then we really can’t say very much about ethics, normativity, or valence with any confidence, ever. But this seems to violate the revealed preferences of the vast majority of people: we sure behave as if some experiences are objectively superior to others, at arbitrarily-fine levels of distinction. It may be very difficult to put an objective valence on a given experience, but in practice we don’t behave as if this valence doesn’t exist.
VIII. Distinctions in qualia: charting the explanation space for valence
Sections II-III made the claim that we need a bottom-up quantitative theory like IIT in order to successfully reverse-engineer valence, Section VI suggested some core problems & issues theories like IIT will need to address, and Section VII proposed three principles for interpreting IIT-style output:
We should think of qualia as having a mathematical representation,
This mathematical representation has a topology and probably a geometry, and perhaps more structure, and
Valence is real; some things do feel better than others, and we should try to explain why in terms of qualia’s mathematical representation.
But what does this get us? Specifically, how does assuming these three things get us any closer to solving valence if we don’t have an actual, validated dataset (“data structure isomorphic to the phenomenology”) from *any* system, much less a real brain?
It actually helps a surprising amount, since an isomorphism between a structured (e.g., topological, geometric) space and qualia implies that any clean or useful distinction we can make in one realm automatically applies in the other realm as well. And if we can explore what kinds of distinctions in qualia we can make, we can start to chart the explanation space for valence (what ‘kind’ of answer it will be).
I propose the following four distinctions which depend on only a very small amount of mathematical structure inherent in qualia space, which should apply equally to qualia and to qualia’s mathematical representation:
Global vs local
Simple vs complex
Atomic vs composite
Intuitively important vs intuitively trivial
Takeaways: this section has suggested that we can get surprising mileage out of the hypothesis that there will exist a geometric data structure isomorphic to the phenomenology of a system, since if we can make a distinction in one domain (math or qualia), it will carry over into the other domain ‘for free’. Given this, I put forth the hypothesis that valence may plausibly be a simple, global, atomic, and intuitively important property of both qualia and its mathematical representation.
IX. Summary of heuristics for reverse-engineering the pattern for valence
Reverse-engineering the precise mathematical property that corresponds to valence may seem like finding a needle in a haystack, but I propose that it may be easier than it appears. Broadly speaking, I see six heuristics for zeroing in on valence:
A. Structural distinctions in Qualia space (Section VIII);
B. Empirical hints from affective neuroscience (Section I);
C. A priori hints from phenomenology;
D. Empirical hints from neurocomputational syntax;
E. The Non-adaptedness Principle;
F. Common patterns across physical formalisms (lessons from physics). None of these heuristics determine the answer, but in aggregate they dramatically reduce the search space.
IX.A: Structural distinctions in Qualia space (Section VIII):
In the previous section, we noted that the following distinctions about qualia can be made: Global vs local; Simple vs complex; Atomic vs composite; Intuitively important vs intuitively trivial. Valence plausibly corresponds to a global, simple, atomic, and intuitively important mathematical property.
Music is surprisingly pleasurable; auditory dissonance is surprisingly unpleasant. Clearly, music has many adaptive signaling & social bonding aspects (Storr 1992; Mcdermott and Hauser 2005)- yet if we subtract everything that could be considered signaling or social bonding (e.g., lyrics, performative aspects, social bonding & enjoyment), we’re still left with something very emotionally powerful. However, this pleasantness can vanish abruptly- and even reverse– if dissonance is added.
Much more could be said here, but a few of the more interesting data points are:
Pleasurable music tends to involve elegant structure when represented geometrically (Tymoczko 2006);
Non-human animals don’t seem to find human music pleasant (with some exceptions), but with knowledge of what pitch range and tempo their auditory systems are optimized to pay attention to, we’ve been able to adapt human music to get animals to prefer it over silence (Snowdon and Teie 2010).
Results suggest that consonance is a primary factor in which sounds are pleasant vs unpleasant in 2- and 4-month-old infants (Trainor, Tsang, and Cheung 2002).
Hearing two of our favorite songs at once doesn’t feel better than just one; instead, it feels significantly worse.
More generally, it feels like music is a particularly interesting case study by which to pick apart the information-theoretic aspects of valence, and it seems plausible that evolution may have piggybacked on some fundamental law of qualia to produce the human preference for music. This should be most obscured with genres of music which focus on lyrics, social proof & social cohesion (e.g., pop music), and performative aspects, and clearest with genres of music which avoid these things (e.g., certain genres of classical music).
X. A simple hypothesis about valence
To recap, the general heuristic from Section VIII was that valence may plausibly correspond to a simple, atomic, global, and intuitively important geometric property of a data structure isomorphic to phenomenology. The specific heuristics from Section IX surveyed hints from a priori phenomenology, hints from what we know of the brain’s computational syntax, introduced the Non-adaptedness Principle, and noted the unreasonable effectiveness of beautiful mathematics in physics to suggest that the specific geometric property corresponding to pleasure should be something that involves some sort of mathematically-interesting patterning, regularity, efficiency, elegance, and/or harmony.
We don’t have enough information to formally deduce which mathematical property these constraints indicate, yet in aggregate these constraints hugely reduce the search space, and also substantially point toward the following:
Given a mathematical object isomorphic to the qualia of a system, the mathematical property which corresponds to how pleasant it is to be that system is that object’s symmetry.
XI. Testing this hypothesis today
In a perfect world, we could plug many peoples’ real-world IIT-style datasets into a symmetry detection algorithm and see if this “Symmetry in the Topology of Phenomenology” (SiToP) theory of valence successfully predicted their self-reported valences.
Unfortunately, we’re a long way from having the theory and data to do that.
But if we make two fairly modest assumptions, I think we should be able to perform some reasonable, simple, and elegant tests on this hypothesis now. The two assumptions are:
We can probably assume that symmetry/pleasure is a more-or-less fractal property: i.e., it’ll be evident on basically all locations and scales of our data structure, and so it should be obvious even with imperfect measurements. Likewise, symmetry in one part of the brain will imply symmetry elsewhere, so we may only need to measure it in a small section that need not be directly contributing to consciousness.
We can probably assume that symmetry in connectome-level brain networks/activity will roughly imply symmetry in the mathematical-object-isomorphic-to-phenomenology (the symmetry that ‘matters’ for valence), and vice-versa. I.e., we need not worry too much about the exact ‘flavor’ of symmetry we’re measuring.
So- given these assumptions, I see three ways to test our hypothesis:
1. More pleasurable brain states should be more compressible (all else being equal).
Symmetry implies compressibility, and so if we can measure the compressibility of a brain state in some sort of broad-stroke fashion while controlling for degree of consciousness, this should be a fairly good proxy for how pleasant that brain state is.
2. Highly consonant/harmonious/symmetric patterns injected directly into the brain should feel dramatically better than similar but dissonant patterns.
Consonance in audio signals generally produces positive valence; dissonance (e.g., nails-on-a-chalkboard) reliably produces negative valence. This obviously follows from our hypothesis, but it’s also obviously true, so we can’t use it as a novel prediction. But if we take the general idea and apply it to unusual ways of ‘injecting’ a signal into the brain, we should be able to make predictions that are (1) novel, and (2) practically useful.
TMS is generally used to disrupt brain functions by oscillating a strong magnetic field over a specific region to make those neurons fire chaotically. But if we used it on a lower-powered, rhythmic setting to ‘inject’ a symmetric/consonant pattern directly into parts of the brain involved directly with consciousness, the result should produce good feeling- or at least, much better valence than a similar dissonant pattern.
Our specific prediction: direct, low-power, rhythmic stimulation (via TMS) of the thalamus at harmonic frequencies (e.g., @1hz+2hz+4hz+6hz+8hz+12hz+16hz+24hz+36hz+48hz+72hz+96hz+148hz) should feel significantly more pleasant than similar stimulation at dissonant frequencies (e.g., @1.01hz+2.01hz+3.98hz+6.02hz+7.99hz+12.03hz+16.01hz+24.02hz+35.97hz+48.05hz+72.04hz+95.94hz+ 147.93hz).
3. More consonant vagus nerve stimulation (VNS) should feel better than dissonant VNS.
The above harmonics-based TMS method would be a ‘pure’ test of the ‘Symmetry in the Topology of Phenomenology’ (SiToP) hypothesis. It may rely on developing custom hardware and is also well outside of my research budget.
However, a promising alternative method to test this is with consumer-grade vagus nerve stimulation (VNS) technology. Nervana Systems has an in-ear device which stimulates the Vagus nerve with rhythmic electrical pulses as it winds its way past the left ear canal. The stimulation is synchronized with either user-supplied music or ambient sound. This synchronization is done, according to the company, in order to mask any discomfort associated with the electrical stimulation. The company says their system works by “electronically signal[ing] the Vagus nerve which in turn stimulates the release of neurotransmitters in the brain that enhance mood.”
This explanation isn’t very satisfying, since it merely punts the question of why these neurotransmitters enhance mood, but their approach seems to work– and based on the symmetry/harmony hypothesis we can say at least something about why: effectively, they’ve somewhat accidentally built a synchronized bimodal approach (coordinated combination of music+VNS) for inducing harmony/symmetry in the brain. This is certainly not the only component of how this VNS system functions, since the parasympathetic nervous system is both complex and powerful by itself, but it could be an important component.
Based on our assumptions about what valence is, we can make a hierarchy of predictions:
Harmonious music + synchronized VNS should feel the best;
Harmonious music + placebo VNS (unsynchronized, simple pattern of stimulation) should feel less pleasant than (1);
Harmonious music + non-synchronized VNS (stimulation that is synchronized to a different kind of music) should feel less pleasant than (1);
Harmonious music + dissonant VNS (stimulation with a pattern which scores low on consonance measures such as (Chon 2008) should feel worse than (2) and (3));
We can also predict that if a bimodal approach for inducing harmony/symmetry in the brain is better than a single modality, a trimodal or quadrimodal approach may be even more effective. E.g., we should consider testing the addition of synchronized rhythmic tactile stimulation and symmetry-centric music visualizations. A key question here is whether adding stimulation modalities would lead to diminishing or synergistic/accelerating returns.