Dr. Grant Iverson is a Professor in the Department of Physical Medicine and Rehabilitation at Harvard Medical School. He is also the Director of the Concussion Research Program for the Schoen Adams Research Institute at Spaulding Rehabilitation, and the Director of the MassGeneral Hospital for Children Sports Concussion Program. He is a leading proponent of a biopsychosocial model for conceptualizing both good and poor outcome from mild traumatic brain injury in athletes, civilians, active-duty military service members, and veterans. He has published more than 560 articles, reviews, and book chapters.