Comment by christophilus
16 hours ago
I don’t see anything, but I also wonder if this is semantics, and we are all describing the same phenomena with different language.
16 hours ago
I don’t see anything, but I also wonder if this is semantics, and we are all describing the same phenomena with different language.
Yeah, I think I have aphantasia as I definitely don't see anything, but after reading a lot about it I still haven't totally ruled out that it's simply a big semantic misunderstanding with people that describe things in a different way.
All the easily accessible aphantasia tests (such as the one in this link) seem to rely on subjectively deciding whether you "see" or not. But this "seeing" seems to be a metaphor (even people who claim to be non-aphantasiacs will concede that it's not literally like seeing), so how do I know that other people aren't having essentially the same internal experience but choosing different words to describe it?
It also doesn't help that it doesn't seem to have any bearing on cognitive ability, or ability to perform tasks that one could effectively measure. I have never felt like I can't do something because I have aphantasia. I have seen people mentioning difficulty on problems where you need to mentally rotate a cube, but I can do that just fine - it's just that I don't "see" or "picture" the cube, but I still have the concept in my mind of the cube being in a certain orientation and that suffices to solve the task.
I have read that there are some tests for aphantasia that don't ultimately depend on introspection and vocabulary (e.g. pupils reacting to imagining something bright or dark, see https://pubmed.ncbi.nlm.nih.gov/35356890/) but I haven't found anything that I can do at home to be sure that I'm really aphantasiac and not just pessimistic about describing "inner images". If anyone knows such a test that one can do at home, I would be very interested.
This is what I used to think. That "aphantasia" was just people arguing semantics about subjective experience. But my belief now is that if you think this way, you likely have aphantasia (I think I do).
A couple things that convinced me that the phenomenon is probably real:
1. I can visualize when I dream, or when I'm dozing/napping. But I can't while awake
2. I can "visualize" sounds, so I can hear a sound/song in my head and it's pretty much like actually hearing it. But I can't do this for imagery
Admittedly, neither of those is a smoking gun and I'd also be interested in a more objective test.
This is my experience too. I have aphantasia for all intents and purposes but I have had one single experience years ago during meditation where I suddenly experienced "being in" a scene that was vivid and clear that I knew to not be real. It's nothing like when I "imagine" something and don't see anything.
It was also nothing like when I dream, where I too can visualise - it was much clearer.
It's clear to me that most of the time when people question that this is possible, it's an indicator they have aphantasia.
It's like a low-quality offscreen framebuffer, and if you can see things in a dream, it's like that.
Ha, I was going to describe it the same way. The image is there in the buffer, you have full bit-level access to it; the only difference is that there's a firewall preventing it from being rendered to the primary display. Dreaming allows rendering it to a virtual display which is temporarily considered canonical.
I think the resolution and bit depth of that buffer is the aphantasia spectrum. Some people are working from a 160x120 1-bit image, for some it's 640x480 8-bit, and some can load up an 8K at 32-bit deep color.
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In a dream I actually am fully immersed and can see the entire world as if it was real. In a normal dream I assume the dream is the real world, and in a lucid dream it is vivid enough to feel, look, and sound like a real physical experience though I know it's not. But in a dream there is no real visual still being processed to compete with the dream visual, so surely it can't be exactly the same? If it's really like dreaming then TIL I may have aphantasia..
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Those tests could also depend on some third thing, such as not believing that you're visualizing a bright light. I can't see their methodology. "Here, we show that the imagery pupillary light response correlates with objective measures of sensory imagery strength." Really, objective measures of how bright an imaginary light is, how on earth do they think they can measure that!? Was it like "we gave them a sheet of paper where they had to score how bright a light they were imagining, and the sheet of paper objectively existed so it was an objective test"?
Well anyway the whole concept, and the science, seems like a giant troll.
If the concept of the mind's eye seems like a giant troll to you, you're either aphantasic or haven't connected the right dots. Can you remember a song? If so, can you do something similar with a picture?
> I have seen people mentioning difficulty on problems where you need to mentally rotate a cube, but I can do that just fine - it's just that I don't "see" or "picture" the cube, but I still have the concept in my mind of the cube being in a certain orientation and that suffices to solve the task.
As someone with probably some form of aphantasia, a cube is fine because it’s a simple shape with well defined simple mathematical rules that is easy to abstract and rotate. It gets more complicated with complex objects and that’s where visualizing things really matters. Here’s a question, can you accurately visualize a loved one’s face, see it in your mind and describe all the features if you were for instance talking to a police sketch artist. I couldn’t even do that for my daughter or my wife.
I definitely can't - if I had to describe my wife or son, I would be hard pressed to go beyond very generic descriptors (long black hair, brown eyes, and so on), nothing useful to create an accurate sketch. And I wouldn't be able to draw them from memory even if I were good at drawing. This could also be explained simply by having bad memory for faces, though.
But yes, little bits of subjective introspective evidence (like that one, and also mostly ignoring visual descriptions in books, and the perception of having no mental images at all that is asked by the standard self-report tests, and so on) add up and make me 99.9% sure I have aphantasia. It's just that it would be nice to have the objective unambiguous external test, the silver bullet, to be totally sure that they're not a bunch of busses in a trench coat as so many honest beliefs are.
note that many autistic people (overrepresented on HN) have face blindness which is (probably) a separate thing. They don't develop the specific specialized circuits for recognizing facial features.
I think this is a better self-test.
Visualize a ball on a table. Now imagine someone walks up to the table, and gives the ball a push. What happens to the ball?
Now, answer these questions:
- What color was the ball?
- What gender was the person that pushed the ball?
- What did they look like?
- What size is the ball? Like a marble, or a baseball, or a basketball, or something else?
- What about the table, what shape was it? What is it made of?
And now the important question: Did you already know, or did you have to choose a color/gender/size, etc. after being asked these questions?
This is an interesting one and I just tried it. I could answer all the questions about the ball, but none about the person or the table other than them existing in a hand-wavy sense. But rather than informing any level of aphantasia, it seems more likely that I simply did not prioritize visualizing those other things past their rough properties, focusing instead on the ball.
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You might need to take a person's background into account as well.
I, for instance, am an avid billiards player. A "ball on a table" naturally makes me think of a billiard ball on a billiards table. A whole host of detail was filled in for me, but all specifically in that context. I could answer some of the answers as if I could visualize, but most of them as someone who could not.
n = 1, I know, but sometimes it takes only one example.
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I could answer "the ball probably rolls off the table" and to everything else; I had no answer and would have to choose after the fact if pushed for an answer.
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That's a test of how interested you are in random people, or indeed in visualizing things at all when not actually necessary.
Then you are almost certainly aphantasic. "It is all just semantics" has to do some incredible acrobatics to make sense of so much language and reported experiences, and doesn't seem biologically plausible either.
Of course, we can never be sure, but from a theoretical and empirical standpoint "all aphantasia discussion is just semantic confusion" is not useful and a complete non-starter.
I have doubts about aphantasia as a legitimate phenomenon, but whether it is or it isn't, it seems likely that many of the positive reports are a result of a misunderstanding, semantic or otherwise.
Certainly some self-diagnoses (positive or negative) are definitely based on misunderstanding, much semantic, as I already agreed in this very thread: https://news.ycombinator.com/item?id=49468528.
Sometimes I think so, I don’t visually see anything in my mind it’s all just thoughts about things like I can feel the image but can’t actually see it.
However I have taken psilocybin mushrooms and when I do I can literally visualize things in my mind as crystal clear as I can see the real world. So I think it isn’t just semantics
I have been wondering this as well. I took part in a study at the local university that seemed related to visualization ability. Aside from various questionnaires about imagining different types of objects, they had me do a test on a PC where I had to look at moving shapes for a few seconds at a time. The shapes would then disappear and I'd have to click on it when it reappeared in a new position a few seconds later. You were meant to be able to predict the location based on the shape's trajectory and could react faster that way.
I doubt it was trying to identify aphantasia though, since that seems like a task you could do well in even without being able to visualize the shape.
Aphantasia and hyperphantasia can be measured. See section 6 here: https://pmc.ncbi.nlm.nih.gov/articles/PMC11437436/
I'm sure it's not, because most of the time I'm aphantasic and rarely I'm not and they're completely different phenomenological experiences.
I’ve see no evidence it’s anything but this. I have no idea if I have it or not or just describe stuff differently. I think this is logically much more likely. It’s a “what does it feel like to be conscious?” or “is my red your red” kind of question. There’s no external benchmark, no way to objectively compare, so you just get a spectrum of reports about the same thing.
I'm very convinced this is what's going on. Qualia are super hard to convey with language! If I had to guess these self-reported instruments are also measuring, indirectly, conscientiousness (do I _really_ see it? it'd be wrong to lie on a survey!) as well as neuroticism (oh God what does that mean? do I _really_ see it? do other people _really_ see it? am I broken?).
I think a couple of the comments in this very thread above, e.g. https://news.ycombinator.com/user?id=slibhb are quite relevant to your case. Thinking this is just semantics is a strong indicator you are likely highly aphantasic.
It is highly unlikely to just be semantics, because when it comes to visualizing complex objects as a non-aphantasic, the specific details spring forth unbidden as an image first, and then you attach the language, and it isn't the reverse order. I suspect also tests of visual memory of complex pictures should reveal similar things here, because e.g. language and other things don't really seem to be able to represent such details, and neurobiologically, there isn't much plausible other way your brain could be memorizing a complex photo without retaining / having activation patterns similar to the actual viewing (and this is what we see in fMRI studies).
If you are careful at noticing your thoughts (and not aphantasic), you can also notice if you are a highly visual thinker, you might sometimes confuse certain memories of things (spellings, place names, other things) that are similar only visually, but not logically or in any other sense modality representation. This would suggest the representations are genuinely visual in these cases.
But yes, no way to be 100% certain, but the "it is just semantics" case is very weak and can't explain much.
I am reasonably confident I am not aphantasiac in the sense described here. My apple is red with some nice green mottling, dust, etc etc. I can see my wife and children in detail in my "mind's eye". As a child people told me I had a "photographic memory", which I also think is sort of "fake" or semantic, but nonetheless: I can remember images I have seen with visual detail and I can imagine hypothetical objects "visually". I still think many self-diagnosed aphantasiacs are tripping on the semantics of wording in a self-report survey, because I could easily talk myself into the other label based on second-and-third-guessing "but what does it mean to _see_ something I'm imagining?" etc. If there is a group of people with an actual quantifiable brain difference, I suspect it is much smaller than the group of "all self-diagnosed aphantasiacs".
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It’s very hard to prove, yes. But you need to deal with the association with SDAM, and the differences in outcomes on the https://aphantasia.com/study/vviq.
It is Qualia only until they can measure it. Which they can now. Blaming everything you do not understand on neuroticism? Might as well go back to dunking witches.
https://www.sciencedaily.com/releases/2022/04/220420092150.h...
I'm not really sure what the hostility is about. That's an interesting study albeit small: 42 non-aphantasiacs and 18 self-diagnosed phantasiacs. If one really wanted to quibble I'm sure there are other possible confounding variables which could be involved in both pupil dilation and self-reported aphantasia. I'm not "blaming" neuroticism, I'm pointing out that these self-reporting surveys are subjective in a way that can be influenced by personality traits.
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I developed full aphantasia at 16 after being put under for a heart procedure.
My minds eye was somewhat diminished after a procedure at 11 when they put me in a twilight instead of fully under.
I have a sister younger who is 6 years younger, we used to play imaginary games all the time, few years ago she asked why we just stopped playing games and it was because I couldn't see the characters anymore.
I eventually recovered like, idk, a faint outline of my parents faces from before the surgery that I can kind of conjur.
It's not semantics.
Yeah, I’m convinced this is the case. Accurately conveying something like that (the qualia of mental imagery) to another person using words is more or less impossible, in my opinion. People like to label themselves and feel special, this is an easy way to do it.