The Live Wired Brain - A New Theory of Dreaming

Eagleman: When any part of the brain goes unused, it gets taken over. If you go blind, your systems for hearing and touch will take over the visual cortex. The more plastic you are as a species, the more dream sleep you have because you need to defend its territory. eagleman: People sometimes talk about their dreams where they say, "I'm walking round my house" But in reality that's just like ours, but not involving vision.