Updated and revised, the highly-anticipated second edition of The Blackwell Companion to Consciousness offers a collection of readings that together represent the most thorough and comprehensive survey of the nature of consciousness available today. Features updates to scientific chapters reflecting the latest research in the fieldIncludes 18 new theoretical, empirical, and methodological chapters covering integrated information theory, renewed interest in panpsychism, and moreCovers a wide array of topics that include the origins and extent of consciousness, various consciousness experiences such as meditation and drug-induced states, and the neuroscience of consciousnessPresents 54 peer-reviewed chapters written by leading experts in the study of consciousness, from across a variety of academic disciplines