1 Department of Neurology, Functional Neurology Research Group, Cognitive Behavioral Neurology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA 2 Department of Psychiatry, Neuropsychiatry Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA 3 Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA 4 Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA 5 Department of Methodology, University of Valencia, Valencia, Spain 6 Frontotemporal Disorders Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA 7 Neuropsychiatry and Behavioral Neurology Division, Departments of Psychiatry and Neurology, Rhode Island Hospital, Alpert Medical School, Brown University, Providence, Rhode Island, USA 8 Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
