Here's a thought: how does color blindness interact with dreaming? Forgive me if I'm incorrect, but I believe color-blindness is an issue of the eyes, not the brain, so these individuals should be able to dream in colors they cannot visibly see. Unless, of course, our dreams are based solely on our experiences and expectations. Then they would only be able to dream in colors they have been able to see before. The idea itself is certainly worth looking into...it would help us understand the degree to which our experiences pattern our minds.


That said, it would be pretty hard to find enough people out there who have vivid enough dreams AND are color-blind.