[aidenn0]

There seems to be great variation in vividness and occurrence of involuntary mental images as well. I have to put effort in if I want to picture something, so most of the time I'm reading books I don't have any mental image of what is happening.

My wife, on the other hand, involuntarily forms rather vivid mental images of stories she is reading, to the point where she has to avoid violent literature in the same manner that she avoids gory movies.

Our subjective experience of reading any given book is so different that it sometimes feels like we read different books when discussing them afterwards.