Aaron T. Beck, MD, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA

Lorna Smith Benjamin, PhD, Department of Psychology, University of Utah, Salt Lake City, UT

Eve Caligor, MD, Department of Psychiatry, Columbia University College of Physicians and Surgeons; Columbia University Center for Psychoanalytic Training and Research, New York, NY

John F. Clarkin, PhD, Department of Psychiatry, Weill-Cornell University Medical College, New York, NY, and Personality Disorders Institute, The New York-Presbyterian Hospital, White Plains, NY

Richard A. Depue, PhD, Laboratory of Neurobiology of Temperament and Personality, Cornell University, Ithaca, NY

Seth D. Grossman, PhD, Institute for Advanced Studies in Personology and Psychopathology, Miami, FL

Otto F. Kernberg, MD, Department of Psychiatry, Weill-Cornell University Medical College, New York, NY; Personality Disorders Institute, The New York-Presbyterian Hospital, White Plains, NY; Columbia University Center for Psychoanalytic Training and Research, New York, NY

Mark F. Lenzenweger, PhD, Department of Psychology, The State University of New York at Binghamton, Binghamton, NY, and Department of Psychiatry, Weill-Cornell University Medical College, New York, NY

Björn Meyer, PhD, School of Psychology and Therapeutic Studies, University of Surrey Roehampton, Whitelands College, London, UK

Theodore Millon, PhD, DSc, Institute for Advanced Studies in Personology and Psychopathology, Miami, FL; Department of Psychology, University of Miami, Miami, FL; Department of Psychiatry, Harvard Medical School/McLean Hospital, Belmont, MA

Paul A. Pilkonis, PhD, Department of Psychiatry, Western Psychiatric Institute and Clinic, Pittsburgh, PA; Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA

Aaron L. Pincus, PhD, Department of Psychology, The Pennsylvania State University, State College, PA

James L. Pretzer, PhD, Department of Psychiatry, Case Western Reserve University, Cleveland, OH; Cleveland Center for Cognitive Therapy, Beachwood, OH