An account of perception is essential for an interpretation of memory, thought, and the mental state. The theory expounded in this book, developed from clinical studies of brain-damaged individuals, is a dynamic process account that departs from static computational models of the mind, with implications for our understanding of all aspects of mental function, including the mind/brain problem. The various topics are discussed in lengthy essays that cover such phenomena as imagery, reality and illusion, time and the present moment, subjectivity, will and agency, and psychoanalysis and group psychology.