Dreams.

Melvyn Bragg hosts a discussion between leading neuroscientists and psychologists about the function and mechanism of dreaming. For much of the 20th century neuroscientists thought there was no meaning to dreams, and currently although neither psychiatrists nor neuroscientists know what the exact function of dreaming is, there is increasing belief that dreams are important and do have meaning. The panel here discuss ideas which have come to shape what we think dreaming is about, from the psychoanalytic theories of Freud to those of behavioural psychology, concluding with what new neurological research is uncovering about our dreaming brains.