Click to see a new table by David W. Orme-Johnson, Ph.D., Robert E. Herron, Ph.D. and David Shapiro, M.A. which lists the American Psychological Association’s twenty DSM-5 symptoms of Post-Traumatic Stress Disorder (PTSD) with the scientific research conducted on the Transcendental Meditation (TM) program that addresses each of these symptoms/criteria. This table applies only TM research that was published in peer-reviewed scientific journals.