Ethan E. Gorenstein is clinical director of the Behavioral Medicine Program at Columbia-Presbyterian Medical Center and a professor of clinical psychology in the department of psychiatry at Columbia University. He is also the author of The Science of Mental Illness (Academic Press). He has an active clinical practice devoted to the use of evidence-based psychological treatment methods for problems of both children and adults.

Ronald Comer has been a professor in Princeton University’s Department of Psychology for the past 27 years and has served as Director of Clinical Psychology Studies for most of that time. He is also currently the director of the department’s undergraduate program.
Professor Comer has received the President’s Award for Distinguished Teaching at the university. His course "Abnormal Psychology" is one of the university’s most popular, and he has offered it almost every year since his arrival at Princeton. He is also a practicing clinical psychologist and serves as a consultant to the Eden Institute for Persons with Autism and to hospitals and family practice residency programs throughout New Jersey. Additionally, he holds an adjunct position as Clinical Associate Professor of Family Medicine at the UMDNJ–Robert Wood Johnson Medical School. In addition to writing Fundamentals of Abnormal Psychology, Professor Comer is the author of the textbook Abnormal Psychology, now in its fourth edition, and the co-author of Case Studies in Abnormal Psychology. He has also published a number of journal articles in clinical psychology, social psychology, and family medicine. Professor Comer was an undergraduate at the University of Pennsylvania and a graduate student at Clark University. He currently lives in Lawrenceville, New Jersey, with his wife, Marlene, and their dog, Annie. From there, he can keep an eye on his sons—Greg, a resident of New York, and Jon, currently a Philadelphian—and on the resurgent Philadelphia sports teams with whom he grew up.

Case 1   Posttraumatic Stress Disorder
Case 2   Panic Disorder
Case 3   Obsessive-Compulsive Disorder
Case 4   Major Depressive Disorder
Case 5   Bipolar Disorder
Case 6   Illness Anxiety Disorder
Case 7   Hoarding Disorder
Case 8   Somatic Symptom Disorder
Case 9   Bulimia Nervosa
Case 10 Alcohol Use Disorder and Marital Distress
Case 11 Sexual Dysfunction: Male Erectile Disorder
Case 12 Schizophrenia
Case 13 Borderline Personality Disorder
Case 14 Antisocial Personality Disorder
Case 15 Autism Spectrum Disorder
Case 16 Attention-Deficit/Hyperactivity Disorder
Case 17 Gender Dysphoria
Case 18 You Decide: Excessive Weight Loss
Case 19 You Decide: Memory Problems
Case 20 You Decide: Hair Pullingh