[skinkestek]

The way I understood it was the apple on a table test:

I was asked to close my eyes and think about an apple.

if you do it now, close your eyes for about 10 - 20 seconds and think very hard about an apple on a table.

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then immediately after opening your eyes tell me what color the apple was.

For me and many others it is an absurd question. We only thought about the thing apple on the thing table, absolutely no visual representation.

For some of my siblings they saw the apple and could of course tell me the color and also the color of the table.

[YurgenJurgensen]

The apple was red.

I didn’t even try to imagine anything. Apples are just conceptually red by default. I can also tell you that it was tart, and crisp. I didn’t imagine those sensations either, they were just the first words that came to my mind when thinking about apples. The table is brown. I didn’t try to imagine anything table either, but the table in my kitchen, where there might be apples, is brown.

Can you see how this exercise is flawed?

[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.