Stephan F. Taylor is a professor of psychiatry and Associate Chair for Research and Research Regulatory Affairs in the Department of Psychiatry; and an adjunct professor of psychology at the University of Michigan. His work focuses on psychiatric disorders (schizophrenia, depression, obsessive-compulsive disorder) and he uses brain mapping and brain stimulation technologies to understand and treat the pathophysiology of these conditions. He directs the Program for Risk Evaluation and Prevention (PREP), designed to identify youth at risk of serious mental illness such as schizophrenia and conduct research into the early stages of psychosis.