Neurofeedback was first used to help symptoms of PTSD in the 1980’s. This study published in 1991 compared two groups of Vietnam veteran PTSD sufferers – one received Neurofeedback brain training and the other didn’t. The Neurofeedback group showed significantly greater reduction in symptoms. 2.5 years after the training, PTSD symptoms had returned in only 20% of the Neurofeedback group, compared with 100% of the control group:

Peniston, E. G., & Kulkosky, P. J. (1991). Alpha-theta brainwave neurofeedback for Vietnam veterans with combat-related post-traumatic stress disorder. Medical Psychotherapy, 4(1), 47-60.

This 2009 paper describes two more case studies – a Canadian veteran of the Bosnia conflict and a Marine veteran of Iraq, and includes SPECT scans of the brains of one of the clients showing changes in the brain before and after brain training hundreds of Neurofeedback therapists are now offering treatment to US Veterans under the banner Homecoming for Veterans.