The Origin of Consciousness in the Breakdown of the Bicameral Mind Julian Jaynes
At the heart of this revised edition is the idea that human consciousness did not begin far back in animal evolution, but is a learned process brought into being as recently as 3000 years ago out of an earlier hallucinatory mentality. The implications of this theory extend into all aspects of man's psychology, history, culture, religion and even future. Included in this edition is an introduction in which the author answers critics of his theory and presents his new ideas.