Barry L. Stern, Ph.D is Associate Clinical Professor of Medical Psychology (in Psychiatry) at the Columbia University Vagelos College of Physicians and Surgeons. Dr. Stern is a licensed clinical psychologist and psychoanalyst, and currently serves as an Associate Director, and the Chair of Psychology, at the Columbia University Center for Psychoanalytic Training and Research. He is been in private practice in New York City for the past 20 years, specializing in psychodynamic psychotherapy, psychoanalysis, Transference-Focused Psychotherapy for personality disorders, and the psychodynamic treatment of couples. Dr. Stern’s clinical and academic interests lie at the intersection of personality and mental health. He is a long-standing Fellow of the Personality Disorders Institute of Weill Medical College of Cornell University, where he has conducted research, published, taught, and consulted in the areas of personality and personality disorder assessment, and the treatment of borderline and narcissistic personality disorders. Dr. Stern also teaches and writes on issues related to the psychodynamic treatment of couples, including, most recently, the publication of “The Fact of the Matter:  Working with Activated Internal Object Relations in Psychodynamic Couple Therapy” (Journal of the American Psychoanalytic Association, 2024).