1 Departments of Psychiatry and Neurobiology, Yale University School of Medicine and Yale-New Haven Hospital, New Haven; Clinical Neuroscience Division, Veterans Administration National Center for PTSD, Veterans Administration Connecticut Healthcare Systems, West Haven, Connecticut. Electronic address: john.krystal@yale.edu.
2 Departments of Psychiatry and Psychology and Center for Neuroscience (CSC), University of California, Davis, Davis, California.