John Briere, Ph.D., is a Professor of Psychiatry at the USC Keck School of Medicine, and Center Director of the USC Adolescent Trauma Training Center of the National Child Traumatic Stress Network.  A past president of the International Society for Traumatic Stress Studies, he is recipient of the Award for Outstanding Contributions to the Science of Trauma Psychology from the American Psychological Association, the Lifetime Achievement Award from the Association for Treatment and Training in the Attachment of Children and the William N. Friedrich Lecturer: Outstanding Contribution to the Field of Child Psychology from the Mayo Clinic.  He is author or co-author of over 140 articles, chapters, and encyclopedia entries, 18 books (published or in progress), and 11 trauma-related psychological tests. In 2015, Dr. Briere was the trauma consultant for the film Room, working with actor Brie Larson and director Lenny Abrahamson. His latest book is Treating risky and compulsive behavior in trauma survivors. His website address is johnbriere.com.