[skinkestek]

My guess is you are affected. You remind me of myself before I realised just how big the difference really is.

People who see images don’t just imagine them or "know apples are red" - they actually see them. I think a couple of comments in this discussion described it as controlled hallucinations. Not scary, rather something useful they can summon on demand.

You can deny it all you want, but there are people who once had a rich, vivid imagination, lost it, and can describe what changed.

I’m a weird edge case myself - I sometimes experience it briefly, right before falling asleep or just after waking up.