Do the blind dream in images? A blind man CAN navigate through a maze, using his sense of intuition. And facial expressions of joy and defeat are the same for both blind and sighted people, despite the fact that the blind have never seen them.
Researchers are studying a man who was blinded by a stroke but who is able to walk around obstacles without bumping into them. In BBC News, Helen Briggs quotes researcher Beatrice de Gelder as saying, “You can experience a total loss of your cortical vision but still retain some capacity to move around inside and out without damage to yourself. It shows us the importance of these evolutionary ancient visual paths. They contribute more than we think they do for us to function in the real world.”