[geoelectric]

I'm fairly sure I'm aphantasic. When I try to imagine something I don't get any visuals, even the visual processing equivalent of subvocalization. Sometimes I can get a flicker of an outline or something but I can't hold the concept and it'll dissolve inside a second. I used to be a pretty good artist working from photos, but I can't compose in my head. At all.

But I do also know what familiar things look like more or less, and I can easily imagine layouts of buildings I know really well. I can explain those things verbally fine.

But it registers more in the way you might expect if you were encountering the object in darkness, or became blind after thoroughly learning the object as a sighted person. I imagine aspects of the object or scene in relationship to each other, sort of feeling over it with my mind, and cross-referencing with facts I remember about it. I'm wondering if that's what you're talking about--being able to conceptualize it rather than visualize it.

I did manage to imagine "blue" once during meditation, though, and that was pretty cool. I really saw it when I did--my whole visual field behind my closed eyes seemed sky blue. Normally I just see clouds of purplish dots on a black field, if there's no light shining through my eyelids, and it's been that way all my life. That experience, more than anything, convinced me people who say they "see" stuff in their mind's eye really do see stuff.

I'm definitely going to check out the linked technique. Maybe it's snake oil but doesn't seem likely to hurt to try. That blue experience was pretty compelling.

[JshWright]

Your experience sounds very similar to mine (even down to once visualizing a color (in my case green), which is what convinced me visualizing is really a thing and I really can't do it).

I describe my "internal" sensory experience as being similar to proprioception. In the same way you can "feel" where your left hand is relative to the rest of your body, that's how my relates to most objects/spaces.

[geoelectric]

Yes, I've also used the proprioception explanation, terminology and all. It felt a little obscure here, so I spelled it out. We must have extremely similar experiences.

I'm curious: have you noticed any effect on your memory? My autobiographical memory is poor--I remember facts about what I've experienced, but I struggle to recall the experiences themselves. I can't "mentally time travel" back to a moment to recall what it was like to be there or note new details about those recollections. I only retain whatever I notice at the time, and in a disconnected fashion as if I were remembering an incident in a book or movie.

I've read that people with similar deficiencies (such as SDAM) frequently also report aphantasia. I've often wondered if the ability to visualize might play a major role in encoding and recalling our experiences.