On this edition of ST, Dr. John Schumann speaks with neuropsychologist Dr. Jennifer Vasterling, a clinical investigator at the Veterans Administration's National Center for PTSD (Post Traumatic Stress Disorder) and the chief of pychology for the VA's Boston, MA Healthcare System. Her work has focused on the impact of battle on veterans and how PTSD can affect their memories, of both the traumatizing event and other personal events in their lives. Dr. Vasterling will speak Thursday evening at 7pm