Philosophy of mind as traditionally understood has rarely engaged directly with psychology and psychiatry. This collection establishes the importance of this interdisciplinary approach and explores new directions in the "philosophy of psychiatry and psychology." The essays are by a distinguished group of contributors whose interests and expertise embrace the cognitive, biological and medical sciences as well as the social sciences and humanities. They address questions such as what establishes personality or personal identity? how should insanity, or sanity, be defined? and what is "consent?"