I've recently been on the Fortean Times Forum viewing a thread about a theory that light switches never work in dreams. I'm interested in the unusual and paranormal but have never come across this before though. On reading some of the postings it seems that the phenomenon might have something to do with consciousness and perception; and more controversially, belief in ghosts and near death experiences.

On a related subject, I seem to have difficulty in remebering colours; not just in my dreams, but also in recalling real life situations.