Professor Stein (BSc, MB ChB, FRCPC, FRSSAf, PhD, DPhil) is professor and chair of the Department of Psychiatry and Mental Health, and director of the Medical Research Council (MRC) Unit on Anxiety and Stress Disorders. His research focuses on the psychobiology and management of the anxiety disorders, including obsessive-compulsive disorder, post-traumatic stress disorder, and social anxiety disorder.

Stein’s work has been continuously funded by extramural grants for more than 15 years. He is a recipient of the International College of Neuropsychopharmacology (CINP)’s Max Hamilton Memorial Award for his contribution to psychopharmacology, and of CINP's Ethics and Psychopharmacology Award for his contribution to the philosophy of psychopharmacology.