Nobel laureate Gerald Edelman on consciousness, creativity and 'neural Darwinism'

Nobel laureate Gerald Edelman rarely gives interviews. He won the Nobel Prize in Physiology/Medicine in 1972 for his work on antibodies, but at 81 he's a true Renaissance man of the brain, heading up what he describes as a 'scientific monastery' in San Diego. He joins Natasha Mitchell to talk consciousness, creativity and 'neural Darwinism'.