Brian A. Sharpless, PhD, Associate Professor, The American School of Professional Psychology, Argosy University Brian A. Sharpless, PhD, is an Associate Professor at the American School of Professional Psychology and a Visiting Research Fellow (Honorary Appointment) in the Department of Psychology at Goldsmith's University of London. He received his PhD in clinical psychology and MA in philosophy from Pennsylvania State University and completed post-doctoral clinical and research fellowships at the University of Pennsylvania. Dr. Sharpless has authored over 40 publications on psychodynamic therapy, common and lesser-known disorders, professional issues, and the history/philosophy of clinical psychology. He is the author of Sleep Paralysis: Historical, Psychological, and Medical Perspectives (with Karl Doghramji, MD) and editor of Unusual and Rare Psychological Disorders: A Handbook for Clinical Practice and Research.