Science Forums 2

[Boerseun]

As far as I understand it, blind people do dream up visual images. Simple reason for this is that although the eyeballs don't work so well, they were born with a perfectly functional visual cortex and 'sight center' in the brain, that interacts with the rest of the brain - so much more when asleep. It might dream up shapes and visual input that will strike no resemblence to reality, but it does seem to simulate perfectly workable visual input when the brain is asleep.