Marc Fagelson, PhD, is Professor of Audiology at East Tennessee State University. He also serves as a consultant and clinical supervisor at the James H. Quillen Mountain Home Veteran's Medical Center in Johnson City, Tennessee, where he serves a clinical population of more than 1,000 patients. He completed undergraduate and master's degrees at Columbia University in New York City and his PhD at the University of Texas-Austin in 1995. Dr. Fagelson has more than 40 peer-reviewed publications and book chapters and has provided more than 100 conference presentations and workshops throughout the United States and internationally. Dr. Fagelson's clinical and research efforts overlap thoroughly. His efforts focus primarily on individuals who suffer from the effects of bothersome tinnitus and disorders of sound tolerance that are exacerbated by histories of traumatic exposures and co-occurring mental health injury, such as posttraumatic stress disorder.