Michael D. Robbins, M.D., is Assistant Clinical Professor of Psychiatry at Harvard Medical School, and is a psychoanalyst affiliated with the Boston Psychoanalytic Society. He has applied his psychoanalytic knowledge to the understanding and treatment of seriously disturbed persons, both in an office setting and at McLean Hospital, Belmont, MA, where he is currently an Attending Psychiatrist. There he has also been in charge of treatment wards, was Director of Admissions, and has done much teaching and consulting. Dr. Robbins has published extensively in the psychoanalytic literature on the theory and treatment of seriously disturbed persons and on related issues of infant and child development. In 1983, he was awarded the Felix and Helene Deutsch Prize by the Boston Psychoanalytic Society for his paper, "Toward a New Mind Model for the Primitive Personalities."