Thank you for bringing up this topic. I had not heard about it.
Just watched the following youtube video. It seems to explain “aphantasia” well.
I need to think about this. But I may have aphantasia, at least to some degree.
– In the meantime, I hope others will comment on this issue and also comment on whether they have it, i.e., whether they can vividly recall imagery in their minds.
– Note that it is NOT about being able to recall memories. I have no problem recalling memories, but forming vivid images with the eyes closed? I feel the same as the lady who describes her situation in the video. I need to go back to sleep. May be I will do better during the daytime.