Dr Hamner is Professor in the Department of Psychiatry and Behavioral Sciences at the Medical University of South Carolina (MUSC) in Charleston. He is also Director of Psychopharmacology Research and Medical Director of the Posttraumatic Stress Disorder Clinical Team (PCT) at the Ralph H. Johnson Department of Veterans Affairs Medical Center in Charleston. Dr Hamner received his medical degree from the University of North Carolina School of Medicine in Chapel Hill, where he also completed his internship and residency in the Department of Psychiatry. He is a member of many professional organizations, including the American Psychiatric Association and the Anxiety Disorders Association of America. He is also an active member on many boards and committees. Dr Hamner’s research interests include such topics as the psychopharmacology of posttraumatic stress disorder (PTSD) and schizophrenia, neurobiology of PTSD, regional brain mapping in PTSD, novel antipsychotic drugs, and endocrine effects of novel antipsychotic drugs. He has served as a principal investigator and co-investigator on numerous clinical trials on schizophrenia, PTSD, and mood disorders. He has lectured extensively on various topics in clinical psychiatry and has authored more than 150 peer-reviewed journal articles, abstracts, and book or encyclopedia chapters. In addition, he has been the recipient of approximately 60 clinical trial or basic clinical science grants in the areas of PTSD, schizophrenia, and mood disorders. Dr Hamner has received numerous professional honors and awards, including the MUSC Golden Apple Award for teaching excellence.