ABSTRACT
Personality or behavior theory of some sort plays a significant part in the clinical operations of the psychologist. Probably the most influential theory of personality developed thus far has been the psychoanalytic system developed by Sigmund Freud. According to Freud, the basic structure of personality consisted of three major components or systems. These were viewed as dynamic and interacting systems and were designated the id, the ego, and the superego. Closely related to the id, and derived from it, is the ego. It has frequently been referred to as fulfilling an executive or integrating function within the personality. During his lifetime, Freud promulgated several different views pertaining to basic drives underlying human behavior. During the phallic stage the sex organs become the center of libidinal energy and autoerotic activity ensues. As most students of psychology know, Freud had a number of early disciples who later broke with him and developed their own theories and schools of thought.
