Anna Freud
Anna Freud focused her attention on the ego's unconscious, defensive operations and introduced many important theoretical and clinical considerations. In "The Ego and the Mechanisms of Defense" (1936), Anna Freud argued the ego was predisposed to supervise, regulate, and oppose the id through a variety of defenses. She described the defenses available to the ego, linked them to the stages of psychosexual development during which they originated, and identified various psychopathological compromise formations in which they were prominent. Clinically, Anna Freud emphasized that the psychoanalyst's attention should always be on the defensive functions of the ego, which could be observed in the manifest presentation of the patient's associations. The analyst needed to be attuned to the moment-by-moment process of what the patient talked about in order to identify, label, and explore defenses as they appeared. For Anna Freud, direct interpretation of repressed content was less important than understanding the ego's methods by which it kept things out of consciousness. Her work provided a bridge between Freud's structural theory and ego psychology.