We're learning more about tinnitus at a steady clip, as researchers use newer imaging modalities to help us understand the origin of the condition, and consider lifestyle and behavioral modifications that may limit its effects. Host Dr. Mark Nolan Hill explores the main causes of tinnitus with Dr. Richard Salvi, professor in the department of communicative disorders and sciences, and director of the Center for Hearing Deafness at the State University of New York at Buffalo School of Medicine.