The fifth edition of the book is the most major revision yet. Written in a friendly and engaging manner, Biopsychology clearly presents the fundamentals of the study of the biology of behavior but makes the topics personally and socially relevant to the reader. Four interwoven themes support the major recent developments in the rapidly changing field of biopsychology. Thousands of new references and dozens of new topics have been added to this edition, making Pinel's discussion of and focus on the human element easy and interesting to read. For those interested in physiological and biological psychology.