Patricia M. Perrin, Ph.D. is a psychologist who has been in private practice in Houston, Texas since 1986. Her practice is the OCD and Anxiety Treatment Center of Houston, specializing in treating OCD, anxiety disorders, OCD spectrum disorders, and in postpartum depression and postpartum OCD. She has presented at various conferences, e.g., the International Obsessive-Compulsive Disorder Foundation, Anxiety Disorders Association of America, Trichotillomania Learning Center, Texas Psychological Association, Houston Psychological Association, Postpartum Support International, and MHA of Greater Houston's Conference on Women's Mental Health. She has presented to faculty and residents of Baylor College of Medicine, at Rice University Counseling Center, and at the Universidad de Monterrey, in Mexico.