1. From the Cognitive Behavioral Neurology Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston (NM, SSY, BW, JNK, DC, DLP); the Neuropsychiatry and Behavioral Neurology Division, Rhode Island Hospital, Departments of Psychiatry and Neurology, Brown University, Alpert Medical School, Providence, R.I. (WCL); the Neuropsychiatry Unit, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston (ZC, JBW, DLP); and the Frontotemporal...