1 Departments of Psychiatry, Neuroscience, and Psychology, Yale University, New Haven, Connecticut; Clinical Neuroscience Division, National Center for PTSD, VA Connecticut Healthcare System, West Haven, Connecticut. Electronic address: john.krystal@yale.edu.
2 Clinical Neuroscience Division, National Center for PTSD, VA Connecticut Healthcare System, West Haven, Connecticut; Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric University Hospital Zurich, Zurich, Switzerland.
3 Departments of Psychiatry, Neuroscience, and Psychology, Yale University, New Haven, Connecticut; Abraham Ribicoff Research Laboratories, Connecticut Mental Health Center, New Haven, Connecticut.
4 Departments of Psychiatry, Neuroscience, and Psychology, Yale University, New Haven, Connecticut; Clinical Neuroscience Division, National Center for PTSD, VA Connecticut Healthcare System, West Haven, Connecticut.