1 The Departments of Neurology and Psychiatry, Functional Neurology Research Group, Massachusetts General Hospital, Harvard Medical School, Boston (Perez); the Department of Neurology, Inselspital University Hospital and Clinical Neuroscience Bern Network, University of Bern, Bern, Switzerland (Aybek); the Section of Cognitive Neuropsychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London (Nicholson); The Children's Hospital at Westmead, Westmead, Australia, the Brain Dynamics Centre at Westmead Institute of Medical Research, Westmead, Australia, and Discipline of Psychiatry and Discipline of Child and Adolescent Health, University of Sydney Medical School, Sydney, Australia (Kozlowska); the Departments of Neurology and Psychiatry, and the Marcus Institute for Brain Health, University of Colorado School of Medicine, Aurora, Colo. (Arciniegas); and the Departments of Psychiatry and Neurology, Rhode Island Hospital, Brown University, Providence, R.I. (LaFrance).