1. From the Departments of Neurology and Psychiatry (D.Z.), NYU Langone Medical Center, New York; Department of Neurology (C.M.C., R.D.), Division Behavioral Neurology, Vanderbilt University Medical Center, Nashville, TN; and Department of Psychiatry and Biobehavioral Sciences (R.W., W.C.D.), David Geffen School of Medicine at UCLA, Los Angeles, CA.