How does the water of the brain yield the wine of conscious experience? What is the link between bodily activity and our inner feeling of what it¿s like to be ourselves? Here, Humphrey examines the issues in the light of evolutionary history and proposes a solution very different from any previously offered. He suggests that instead of focusing on second-order mental faculties, we need to look at the raw sensations themselves that are central to all conscious states. He takes the reader on a journey through little-known areas of biology, psychology, and philosophy, to discover the origins of all forms of self-awareness in the primitive pain and pleasure responses of our distant ancestors. Winner of the British Psychol. Soc. Book Award. Illus.