Providence VA Medical Healthcare System 1 article published in JoVE Neuroscience Simultaneous Application of Transcranial Direct Current Stimulation during Virtual Reality Exposure Mascha van 't Wout-Frank1,2,3, Noah S. Philip1,2,3 1VA RR&D Center for Neurorestoration and Neurotechnology, Providence VA Medical Healthcare System, 2Department of Psychiatry and Human Behavior, Alpert Brown Medical School, 3COBRE Center for Neuromodulation, Butler Hospital This manuscript outlines a novel protocol to allow the simultaneous application of transcranial direct current stimulation during exposure to warzone trauma-related cues using virtual reality for veterans with posttraumatic stress disorder.