Peter Fonagy, PhD, is Freud Memorial Professor of Psychoanalysis at the University of London and Director of the Sub-Department of Clinical Health Psychology at University College London. He is Director of Research at the Anna Freud Centre, London, and Director of the Child and Family Center at the Menninger Foundation in Kansas. He is a clinical psychologist and a training and supervising analyst in the British Psycho-Analytical Society. His research interests include the study of the outcome of psychoanalytic psychotherapy and the impact of early parent-child relationships on personality development. He is the current Chair of the International Psychoanalytic Association's Standing Committee on Research, and serves on the Executive Council of the World Association of Infant Mental Health.