Margaret S. MahlerMargaret Schonberger Mahler (May 10, 1897 - October 2, 1985) was a Hungarian physician, who later became interested in psychiatry. She was a central figure on the world stage of psychoanalysis. Her main interest was in normal childhood development, bt she spent much of her time with psychiatric children and how they arrive at the "self." Mahler developed the separation-individuation theory of child development. Read More Read Less