So, if you study a map of a building, noticing that it has a kitchen at a certain place, then in go inside the building (without the map), and someone says “go to the kitchen,” how do you know where the kitchen is? How do you imagine the paths, rooms, hallways to follow?

I know this isn’t true of everybody with alphantasia, but what I do in this situation is I get lost. I can’t visualize walking through the space while I study the map, and I can’t bring the map to mind when I’m actually there. Some people with aphantasia have no trouble finding their way around, so I think in my case it must be that I’m missing some innate sense of direction as well that visualization might have helped me to compensate for, if only I could.

If I told you “a pink and brown dog,” you can’t “see” that dog in your mind at all?

Correct. I’m not 100% on the aphantasia spectrum, so if I think about it then I might get the briefest flash of some dog, like an afterimage at best, and I can’t hold it in my mind, or manipulate it, or see any details or color. It’s not even really a complete outline or anything either that flashes for that quarter-second.

When I read a book, I don’t know what the characters or places look like. But I have always been able to draw really well. So it’s really a mystery how this all works.