But how can a person blind since birth have visual dreams when they've
never seen anything?
> Yes, a person who is born blind still has dreams with visual
> perceptions in it. A good recent book is Robert Van De Castle's
> The Dreaming Mind. He has a lot of early theories of dreaming
> included in the book, that I really haven't seen compiled elsewhere.
> He also has chapters on the psychophysiological study of dreaming,
> in which the tidbit above was mentioned. I don't really buy
> his belief in telepathic dreams, but he certainly is a scholar
> in the area.