Psychology 230H is a course that concentrates to a large degree on philosophical and neuroscientific issues, related to personality. It is divided into five primary topics, following an introduction and overview. The first half of the course deals with classic, clinical issues of personality; the second, with biological and psychometric issues. Students who are interested in clinical psychology, moral development, functional neurobiology and psychometric theory should adapt well to the class. An intrinsic interest in philosophical issues is a necessity.