Peter Fonagy, Ph.D., F.B.A., is Freud Memorial Professor of Psychoanalysis and Director of the Sub-Department of Clinical Health Psychology at Univesity College London.

Gyorgy Gergely, Ph.D., is Director of the Developmental Psychology Laboratory of the Psychology Institute of the Hungarian Academy of Sciences.

Mary Target, Ph.D., is a Senior Lecturer in Psychoanalysis at University College London.

Elliot L. Jurist, Ph.D., is Director of the PhD Program in Cinical Psychology, CUNY, and Lecturer, Department of Psychiatry, College of Physicians and Surgeons, Columbia University.