Dr. Hallett obtained his M.D. at Harvard University, interned at the Peter Bent Brigham Hospital and trained in Neurology at Massachusetts General Hospital. He had fellowships in Neurophysiology at the National Institutes of Health and at the Institute of Psychiatry in London. From 1976 to 1984, Dr. Hallett was the Chief of the Clinical Neurophysiology Laboratory at the Brigham and Women’s Hospital and Associate Professor of Neurology at Harvard Medical School. From 1984, he has been at the National Institute of Neurological Disorders and Stroke where he serves as Chief of the Human Motor Control Section and pursues research on the Physiology of Human Movement Disorders and other problems of Motor Control. He also served as Clinical Director of NINDS until July 2000. He is past President of the American Association of Electrodiagnostic Medicine and the Movement Disorder Society. He also served as Vice-President of the American Academy of Neurology. He is an Associate Editor of Brain and Editor in Chief of World Neurology. Currently he also serves on the editorial boards of Clinical Neurophysiology, Acta Neurologica Scandinavica, Journal of Clinical Neurophysiology, Medical Problems of Performing Artists, Annals of Neurology, The Cerebellum, and NeuroTherapeutics. The main work of his group focuses on the physiology and pathophysiology of movement. Dr. Hallett’s interests in Motor Control are wide-ranging, and include brain plasticity and its relevance to neurological disorders and the pathophysiology of dystonia, parkinsonism, and myoclonus.