There are introductory essays describing the philosophical, historical, and psychological approaches, making this a uniquely comprehensive overview. The introduction presents the background of the concept of the self from the perspectives of philosophy, psychiatry, neuroscience, and the social sciences. The book continues with several chapters that look at neural correlates of self-awareness. The second chapter ends with the conclusion that "neuroscience, philosophy, and psychiatry execute their investigation from different perspectives," each presenting the "truth," relative to their certain point of view. In chapter 6, Philip Barnard provides a neat set of figures and illustrations giving an overview of the cognitive systems architecture, followed by figures attempting to simplify "abnormal formation of meaning," in understanding schizophrenia.