There's a long time contributor to lesswrong who has been studying this stuff since at least 2011 in a very mechanistic way, with lots of practical experimental data. His blog is still up, and still has circa-2011 essays like "What Trance Says About Rationality".
You might want to have a look at the
The Collected Papers of Milton H. Erickson on Hypnosis Vol 1 - The Nature of Hypnosis and Suggestion
I read it some years ago and found it insightful and plausible and fun to read, but couldn't wrap my mind around it forming a coherent theory. And form my recollection, many things in there confirm Johnstone and complement it, esp. the high-status aspects. There may be more.
I think what’s happening in this last one is that there’s a salient intuitive model where your body is part of “the crowd”, and “the crowd” is the force controlling your actions.
This strongly reminds me of this excellent essay: https://meltingasphalt.com/music-in-human-evolution/
You refer to status as an attribute of a person, but now I'm wondering how the brain represents status. I wouldn't rule out the possibility of high status being the same thing as the willingness to let others control you.
You can find my current opinions about status in:
I think your phrase “willingness to let others control you” is conveying a kinda strange vibe. (Not sure how deliberate that is.)
Story: I have a hunch that the blue paint color will look best, but my interior decorator has a hunch that the green paint color will look best. I defer to her judgment because she’s an experienced professional whom I trust—partly because her previous projects have all come out beautifully. So I order the green paint.
In this story, am I “letting my interior decorator control me”? Ummm, kinda? But that’s an awfully strange way to describe that interaction! I don’t immediately see the merit of that framing.
Crowds are trance-inducing because the anonymity imposed by the crowd absolves you of the need to maintain your identity.
In a tight crowd, it is easiest to do what the crowd is doing, and there are attractors for what works in a crowd (e.g. speed of movement) that the crowd's dynamic takes over.
4.1 Post summary / Table of contents
Part of the Intuitive Self-Models series.
“Trance” is an umbrella term for various states of consciousness in which “you lose yourself”, somehow. The first kind that I learned about was hypnotic trance, as depicted in the media:
With examples like that, I quite naturally assumed that hypnotism was fictional.
Other types of trance, particularly “spirit possession” in traditional cultures (e.g. Haitian Vodou), and New Age “channeling”, initially struck me as equally fictional—especially the wild claim that people would “wake up” from their hypnotic or other trance with no memory of what just happened. But when I looked into it a bit more, I found myself believing that these are indeed real experiences, even if I couldn’t explain them.
(…Not veridical experiences! Obviously the New Age “channelers” are not literally “receiving information from paranormal sources”! But real experiences. See §1.3.1–1.3.2 for the difference.)
Meanwhile, the term “trance” is also applied to the more down-to-earth experience of “losing oneself” in drugs, music, slot machines, or (of course) writing good code. Those seemed less weird to me. But I didn’t see how they had anything to do with the more exotic amnesia-inducing types of trance above.
Then finally I read the “Masks and Trance” chapter of Keith Johnstone’s Impro: Improvisation and the Theatre (1979). Not only did he suggest themes and patterns connecting the various types of trance, but he also drew on his many years of personal experience figuring out how to induce trance states in students taking his acting classes. His own trance-induction technique centered around having the students wear masks, look at themselves in the mirror, and thus somehow “become” the mask. He elaborated on that core technique with various other supporting tricks, which I’ll reverse-engineer below. Anyway, that book chapter gave me lots of nuts-and-bolts details to chew on, enough that everything about trance started to click into place.
Thanks to everything we’ve learned in the previous three posts of this series under our belts, I claim that we’re in a great position to understand all the different types of trance. Exactly what are they? What do they have in common? Why do they happen? What makes them tick?
The rest of the post is organized as follows:
(Sources: Just about everything that I know about trance phenomena in the real world, I learned from that one book chapter by Johnstone. I find him a trustworthy source in general, but you should accordingly take these claims with a grain of salt, and please share in the comments if I’m missing anything important!)
4.2 Background context: The subtle art of changing an intuitive model
4.2.1 Back to bistable perception
Back in §1.2, I talked about the Spinning Dancer video, which is bistably compatible with either an intuitive model where she spins clockwise, or an intuitive model where she spins counterclockwise.
…But then I mentioned that for some reason, it’s very hard for me to get her to seem to spin clockwise. Every time I look at her, she seems to be spinning counterclockwise.
Suppose I really want her to be spinning clockwise in my mind. What might I do? There’s a comment thread where we were exchanging tips and tricks. Put some other spinning thing nearby in your field of view? Rotate the screen then flip it back? Use your peripheral vision? You get the idea.
Using one of those tricks, I managed to make the dancer spin clockwise for a few seconds! Until I blinked and lost it. But with a bit more time and effort, I’m sure I could get the Spinning Dancer to flip at will.
4.2.2 Shifting intuitive models is like herding cats: hard but possible
What do we learn from my dancer example?
On the one hand, shifting intuitive models is surprisingly hard! You can’t necessarily just want to have a particular intuitive model, and voluntarily make that happen. It’s more like herding cats—using careful control of attention, actions, and sensory input environment, in order to exert weak and indirect influence on a complex low-level process.
And I should hardly be complaining about how hard it is for me to learn to control my intuitive model of the Spinning Dancer … when there are meditators who spend thousands of hours trying to achieve certain shifts in their intuitive models of their own minds.
But on the other hand, intuitive models can be manipulated with the right techniques. It’s a skill issue.
Of course, people don’t need to understand why intuitive-model-shifting techniques work, in order to use them. They can be discovered by trial-and-error, and then passed around via culture. But still, I want to know why the techniques work. Entering a trance is an intuitive self-model shift, and there are techniques that tend to make it happen. How do they work? Explaining that will be a major theme of this post. But first I need to say what a trance is! One more bit of background first, though:
4.3 Background notation: S(⋯) and D(⋯)
As a reminder from §2.2.3, “S(apple)” is short for “the concept of apple in a self-reflective frame”, i.e. the self-reflective intuitive model where we’re envisioning the apple as the occupant of conscious awareness. S(apple) is how we think about the possibility of the apple being in awareness, and thus it’s different from the apple actually being in awareness—in other words, S(apple) ≠ apple. Instead, S(apple) involves a frame (in the sense of “frame semantics” in linguistics or “frame languages” in GOFAI) where the “awareness” concept and the “apple” concept are connected into an abstract container / containee relationship.
Also as a reminder from §2.6, for any action A (either attention-control or motor-control), there’s a common rapid sequence of two consecutive thoughts [S(A) ; A], where more specifically S(A) has positive valence. This sequence is conceptualized as the “intentional” execution of action A, as “an exercise of free will”. This two-step sequence is itself encapsulated as an intuitive model, which I call “D(A)”, short for “deciding to do A”.
And then §3.5 added the other half of how we conceptualize this sequence. We think of S(A) as having positive valence because the homunculus wants A to happen right now; and then we think of A actually happening because the homunculus did it.
In this post, it’s not always the homunculus that does it. So I’ll need a new ingredient in the notation: “S(X←Z)” and “D(X←Z)”, where Z is the agent that is causing these things to happen via its vitalistic force (§3.3). So in the previous posts, S(X) and D(X) are always short for S(X←homunculus) and D(X←homunculus) respectively. But in this post, we’ll see examples where Z is the hypnotist, or spirit, or mask, or character, etc. You could read D(A←Z) as “Z deciding to do action A”.
4.4 What is a “trance”?
Finally, the section we’ve been waiting for!
I don’t think there’s a single standard definition of “trance”, but I think I came up with a nice way to classify the space of trance-related phenomena.
4.4.1 Two properties related to “trance”: a 2×2 square
The word “trance” seems to be used in inconsistent ways. I propose the following definitions:
These two properties are obviously not totally independent—for example, when trance property 1 holds, that kinda “opens up space” for an alternative conceptualization (property 2). But the two properties can also come apart. In fact, they fill out all four quadrants of a 2×2 square as follows:
The top-left (“everyday life”) is self-explanatory; let’s talk about the other three:
4.4.1.1 Property 1 but not Property 2: Flow states
Think of getting lost in an engrossing film, or book, or videogame, or slot machine, or dance, or engineering trade space analysis. Or running for your life from an angry bear.
These all have something in common—you “lose yourself” in it, and don’t realize how much time has passed. I’ll explain why later (§4.6).
4.4.1.2 Property 2 but not Property 1: “Lucid trance” and related
In these cases, the homunculus is sometimes conceptualized as taking actions (either motor control, attention control, or both), but some non-homunculus entity is also conceptualized as taking actions.
My main example is “lucid trance”. There, the homunculus is conceptualized as taking attention-control actions from time to time (popping in to “observe” what’s happening), but takes few if any motor actions.
Here’s an example where Impro talks about lucid trance:
In Kemble’s description there, you can see how her normal homunculus is taking sporadic attention and motor actions to ensure proper stage blocking, while meanwhile her in-character homunculus is outputting most of her actions and dialog.
A different example is a “tulpa”, which Wikipedia describes (in its modern secular form) as “a type of willed imaginary friend which practitioners consider to be sentient and relatively independent”. Here, there’s more of an even split, where the homunculus is conceptualized as taking some attention-control and motor-control actions, but some other entity is also conceptualized as taking some attention-control actions. To be clear, I think tulpas are not normally described as a form of lucid trance. But both of my tulpamancer friends report that their tulpa can execute motor-control actions too, and if that’s not a lucid trance, at least it seems to have an awful lot in common with a lucid trance.[2]
4.4.1.3 Both Property 1 and Property 2: Deep trance, sometimes involving amnesia
This category includes the most stereotypical “real” trance states, including deep hypnotism, intense possession ceremonies in traditional cultures, New Age “channeling”, and so on. Their most startling property is that they often (or maybe always?) seem to come along with amnesia, for reasons I’ll get to in §4.6.2 below.
4.4.2 What does “irreconcilably different” mean in Property 2?
Here’s another illustrative discussion from Impro, in the context of classes where Johnstone tries to get his students to feel “possessed” by a mask.
To explain what I think he’s getting at: In the brain’s intuitive models, concepts can be stretched to some extent, but eventually break and need to be tossed out and replaced by a different, incompatible concept.
For example, compare (A) a stereotypical baseball, (B) a squashed and malformed (but still recognizable) baseball, (C) a carrot. It’s not just that these get progressively less baseball-ish. Instead, the intuitive “baseball” concept flips off entirely at some point between (B) and (C): (C) is just simply not a baseball at all, in your intuitive conception. If I mumble the word “baseball”, it constitutes evidence against the possibility that I’m talking about (C), whereas it would be evidence for the possibility that I’m talking about (B) or (A).
Back to trance. In the quote above, I claim that Johnstone is suggesting that, when untrained students put on the mask, they often construct a mental model that maintains the homunculus as active, but somehow stretches / modifies / patches it to better fit the current situation. And that’s disappointing to Johnstone—it’s not what he’s going for in the class. Instead, he works hard to find techniques that will lead to a conceptualization where the cause of the actions does not involve the homunculus concept at all, but rather an entirely different intuitive concept.
And that’s what I mean when I say “irreconcilably different” in Property 2.
4.5 Explaining various tricks that help start and maintain trance
4.5.1 Trick 1: Hold in mind beliefs that are incompatible with your mental model of the homunculus
The S(A←homunculus) thought has various properties / associations. One of them is a spatial location—typically the head, as discussed in §3.7. Another is the strong association between the homunculus and your concept of the body which the homunculus manipulates, feels, and occupies (cf. “body schema”).
So if you can hold incompatible properties / associations as very active in your head, it prevents the S(A←homunculus) model from arising. It’s analogous to how you can prevent yourself from thinking about a tune by holding a different tune in your head, or how you can prevent yourself from thinking about anything by paying sufficiently rapt attention to your breath, or how strong feelings of anxiety about failure make it very difficult to even imagine the possibility of success.
Suppressing S(A←homunculus) thoughts directly helps Trance Property 1 and indirectly helps Trance Property 2.
Examples / discussion in Impro:
(We already saw the first part of this quote in §3.7.1.)
Likewise, insofar as the homunculus concept is strongly associated with a certain facial appearance, seeing the wrong face in a mirror is incompatible with that concept. Hence the idea of wearing a mask and looking in the mirror:
(This mask technique also uses Tricks 2, 3, and 4A below.)
4.5.2 Trick 2: Avoid any action A that would normally be conceptualized as being caused by the homunculus
(These include “deliberate” motor actions and “deliberate” attention control. Spontaneous / impulsive actions can be OK, see §3.5.2 in the previous post and §4.6.3 below.)
How does this work? When such an A arises, if we self-reflect on what’s happening, we by default explain it as D(A←homunculus), which is counterproductive for any type of trance.
Examples from Impro:
Here’s something vaguely related in Kaj Sotala’s post about Buddhist no-self:
4.5.3 Trick 3: Seek out perceptual illusions where the most salient intuitive explanation of what’s happening is that a different agent is the direct cause of motor or attentional actions
How does this work? It’s self-explanatory. Recall, Trance Property 2 entails getting lots of D(A←Z) thoughts into your head, where Z is NOT the homunculus. These kinds of perceptual illusions are a great way to increase the intuitive salience and plausibility of those kinds of models.
Some examples from Impro:
One more example, I think:
I think what’s happening in this last one is that there’s a salient intuitive model where your body is part of “the crowd”, and “the crowd” is the force controlling your actions.
4.5.4 Trick 4: Find a “possessor” who you see as high status (a leader that you want to follow)
Background: Seeing someone as high status basically means that, if they want me to do X, then I feel motivated to do X as a direct consequence of that.
As discussed in my post Social status part 2/2: everything else, there are two main categories of reasons that I might see someone as high status—(1) maybe I like / admire them; or (2) maybe I fear them. These correspond to the “prestige” / “dominance” split of Dual Strategies Theory.
However, for the purpose of this discussion, it doesn’t matter why you’re sincerely motivated to do what the leader wants, it just matters that you have that motivation.[3]
How does this work? Suppose there’s a hypnotist who I see as a leader that I sincerely want to follow, for whatever reason. If the hypnotist says “stand”, then I immediately want to stand, by definition.
So far, this isn’t a trance; I’m just describing a common social dynamic. Specifically, if I’m not in a hypnotic trance, the sequence of thoughts in the above might look like a three-step process:
[S(stand←hypnotist) ; S(stand←homunculus) ; stand]
i.e., in my intuitive model, first, the hypnotist exercises his free will with the intention of me standing; second, I (my homunculus) exercise my own free will with the intention of standing; and third, I actually stand. In this conceptualization, it’s my own free will / vitalistic force / wanting (§3.3.4) that causes me to stand. So this is not a trance.
However, my relation to the hypnotist opens up the possibility of a different sequence of thoughts, where the middle step is omitted:
[S(stand←hypnotist) ; stand]
And this sequence is represented by the intuitive model I called “D(stand←hypnotist)”, i.e. the hypnotist expressing his free will through my body, and making me stand.
I’m motivated to stand for the same reason as before—i.e., because I see the hypnotist as a high-status leader whom I’m motivated to follow—but the action is conceptualized differently.
Examples from Impro:
Here’s the basic dynamic:
This next quote makes it clear that the S(A←homunculus) thoughts tend to be negative-valence / aversive, whereas the S(A←hypnotist) thoughts tend to be positive-valence, which helps facilitate the latter getting dropped out. Why do they have those valences? I think those both come from the same strong motivation to do what the hypnotist wants: if your homunculus makes a decision, then there’s a risk that you’ll do something the hypnotist doesn’t like, whereas if you’re a medium for the hypnotist’s (inferred) will, then there’s much less risk of that. Here’s the quote:
(Note that the intuition that “I can do something but only with great effort” is associated with negative valence—see discussion here.)
4.5.4.1 Trick 4A: Indirect version—the high-status person is not the actual “possessor”
This is a funny variant where the high-status person doesn’t act as the possessor themselves, but rather directs that something else should be the possessor. I guess that works too. My main example here is the mask-possession technique described at length in Impro.
When the students are “possessed” by the masks, the masks themselves don’t have high status (from the students’ perspective). But the students do know that high-status Johnstone wants them to be possessed by the mask. So we can still get sequences like:
[S(dance ← mask persona) ; dance]
where the mask persona “decides” to dance. Again, there’s positive valence associated with S(dance ← mask persona), which then causes “dance” to happen; and the source of that positive valence is students’ motivation to do what they think Johnstone wants them to do, because they look up to him and trust him. Or at least, that’s some nonzero part of it. Presumably they also want to be better actors, to have a new fun experience, etc.
A related factor is that, if they trust that high-status Johnstone is in charge and keeping them safe, then they can feel more motivated to get deeper into the trance—they don’t need to remain lucid for their own safety.
Examples from Impro:
Johnstone first talks about his own status as part of how he induces trance in his mask classes:
Then a later section entitled “Dangers” has some more illuminating status-related discussion:
4.6 Explaining properties of trance
Now that we know more about what trance is, and how it’s induced, we can tackle the question of what happens in a trance, and why.
4.6.1 Trance Property 1 causes “losing track of time”
Recall that Trance Property 1 is the absence of S(⋯←homunculus) thoughts, and includes flow states, engrossing movies, and deep trance states. A property of these is that we often “lose track of time”. I think this has a couple connotations, which I’ll go over.
Connotation 1: “While the thing is happening, we’re not thinking about how long we’ve been doing it.”
Imagine I’m engrossed in a movie. If the prince is fighting the dragon in the river, then I’m thinking about the prince and the dragon and the river. I’m not thinking about how long the movie has been going on.
By contrast, when a self-modeling S(⋯←homunculus) thought pops up, e.g. “I’m watching a movie right now”, one of its salient associations is how watching the movie fits into the narrative of my day and my life, which might bring to mind the question of how long I’ve been watching.
Connotation 2: After the thing is over, we might look back on what just happened and say “I can’t believe how much time passed—it felt like a few minutes but it’s been hours!”
I think the explanation is a combination of auto-associative memory and the availability heuristic. When I want to know how long X took, the default procedure is: (1) try to summon memories that were captured in the midst of X, (2) see how many memories come up, and how easily. (It’s not a reliable procedure, but it’s so easy that people evidently do it anyway. And if they need more reliable data than that, they check the clock!)
Now, there’s a problem with using auto-associative memory for this purpose: if I was engrossed in a movie, and there was a scene where the prince fights the dragon in the river, I can only recall that scene by thinking about “prince”, or “dragon”, or “river”, etc. But I can’t pull up any of those, because they’re not on my mind! It’s a chicken-and-egg problem! So those memories are rather inaccessible.
On the other hand, if I was not engrossed in the movie, but rather periodically thinking self-modeling S(⋯)-related thoughts during the movie (“I am ¾ of the way through the movie now…”), then I can think “myself watching the movie”, and then any or all of those archived S(⋯) thoughts will auto-associatively pop right into my mind. The self-reflective narrative of my day serves as a kind of “hook” for auto-associative recall.
As an exception which proves the rule, I think there are instances where you’re in a flow state for a long time, but there’s an readily-accessible “hook” to pull up lots of different snapshots from within that interval. For example, suppose you were writing for four hours in a flow state. Maybe afterwards, you would say “Where did the time go! Those hours felt like minutes!” But then maybe you would scroll up on your screen, seeing paragraph after paragraph of what you just wrote, and then maybe you’d say “…Huh, well, that was a really epic work session, I sure did do a lot of stuff!”. And now the hours feel like hours again.
To be clear, none of this is amnesia—I can still remember what I did during my flow state at work, and I can still remember the movie plot. Being engrossed makes it harder to summon memories via a life-narrative-level “hook” (“I watched a movie last night, what was happening halfway through it?”) but the memories are still there if you find an object-level “hook” with which to retrieve them (“Seeing that river reminds me of the battle scene in the movie last night…”).
So let’s move on to the deeper form of amnesia:
4.6.2 “Deep” trance with both properties 1 & 2 can be associated with amnesia
At the top, I suggested a distinction between lucid trance states with Property 2 but not Property 1, versus amnesiac trance states which have both properties.
The lucid-versus-amnesiac distinction comes from Johnstone. For example:
Or again:
As far as I can tell from studies of trance amnesia (including posthypnotic amnesia), trance amnesia is the exact same phenomenon as the amnesia across Dissociative Identity Disorder (DID) “alters”. It’s an interesting phenomenon. It’s readily distinguishable from true amnesia, particularly because (1) it only impacts explicit (autobiographical) memories, not other kinds of memory; (2) subjects do worse than chance on certain tests of recall. But the phenomenon is also readily distinguishable from malingering (a.k.a. “just trolling the experimenters”). Anyway, I’ll discuss DID amnesia in the next post, and my opinion is that trance amnesia is the same thing.
The short version is: If I have a tune in my head, then I’m very unlikely to simultaneously recall a memory of a different tune. Likewise, if I’m angry right now, then I’m less likely to recall past memories where I felt happy and forgiving, and vice-versa.
In an analogous way, if I’m in a conventional state of consciousness, where the homunculus is active and salient, then that fact conflicts with the summoning of memories where an irreconcilably-different (§4.4.2) entity is conceptualized as the cause of mental events.
Those kinds of associational conflicts normally have a nonzero but limited impact on memory. However, in the context of trance, it morphs into a far more powerful and effective force.
Again, more in the next post; we thank you for your patience.
4.6.3 Possessions are often child-like
4.6.3.1 Learning to talk from scratch
Johnstone says that, in mask possessions, the students-as-masks usually need to re-learn to talk from scratch—and he discusses how to give them “speech lessons” in great detail!
But there’s a revealing caveat on that:
I think what’s happening is:
Johnstone’s students are much more towards the “fragile and shaky” end. They’re new to the whole mask-possession business. They come from a culture with no trance traditions. And they’re trying to jump right into a trance, rather than first having their conventional identity softened by an hours-long ceremony of drums, drugs, and dancing. So the students’ initial trance states are quite fragile, and speaking will tend to break it.
Taking that one step further, since the students know that speech acts will break their trance, they’ll preemptively avoid speaking. After all, they want to be in a trance, all things considered. Otherwise, they wouldn’t be in one in the first place (see §4.5.4 above).
4.6.3.2 Other examples beyond speech
We can generalize from this to say that, over life experience, we develop a rich and complex set of behaviors that constitute “my best self” and are always done intentionally (cf. §2.5.1). These behaviors are all threats to the stability of a trance (especially a shaky novice trance), and hence novices who are motivated to maintain a trance will “flinch away” from those behaviors.
And if those behaviors are all suppressed, then what remains? Acting on impulse, like a child.
More examples from Impro:
4.7 Conclusion
I think this story hangs together well, and accordingly I now see trance states as natural and expected, as opposed to bizarre and implausible, and fun[5] rather than scary.
In particular, I think the excerpts in §4.5.4 make it especially clear that the motivation to enter a trance, and the motivation to remain in a trance, and the motivation to do things in a trance, are all conventional motivations that can be understood in conventional terms. There’s no paranormal mind-control happening here! Hold that thought—we’ll be returning to that same theme in Posts 5, 6, 7, and especially 8.
As mentioned at the top, I haven’t exhaustively researched trance, so please leave comments below!
In the next post, we move on to Dissociative Identity Disorder, which will turn out to have some overlap with the ideas I introduced above.
Thanks Thane Ruthenis, Linda Linsefors, Justis Mills, and Johannes Mayer for critical comments on earlier drafts.
Fanny Kemble is a famous 19th-century actress.
This paragraph is pretty much all I plan to say about tulpas in this series—the series is long enough as is.
That said, I would guess that prestige is much more common and effective than dominance, in terms of trance-induction. I say that because I think liking / admiring tends to leads to more sincere and enthusiastic motivation to “follow”, whereas fear tends to lead to more grudging obedience.
Maya Deren was an avant-garde filmmaker who who filmed, wrote about, and participated in Haitian Vodou rituals in the 1940s–50s.
I mean, fun for some people. It’s not really my scene.