Jon G. Allen, Ph.D., is the Helen Malsin Palley Chair in Mental Health Research; Professor of Psychiatry in the Menninger Department of Psychiatry and Behavioral Sciences at the Baylor College of Medicine; and Senior Staff Psychologist in The Menninger Clinic, Houston, Texas.

Peter Fonagy, Ph.D., F.B.A., is Freud Memorial Professor of Psychoanalysis and Director of the Sub-Department of Clinical Health Psychology at University College London; Chief Executive of the Anna Freud Centre, London; and Consultant to the Child and Family Program at the Menninger Department of Psychiatry and Behavioral Sciences at the Baylor College of Medicine.

Anthony W. Bateman, M.D., F.R.C.Psych., is Consultant Psychiatrist in Psychotherapy, Halliwick Unit, St. Ann's Hospital, Barnet, Enfield, and Haringey Mental Health Trust; Visiting Professor, University College London; and Visiting Consultant, The Menninger Clinic and the Menninger Department of Psychiatry and Behavioral Sciences at the Baylor College of Medicine.