1 Center for Cognitive Medicine (PAN), Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN; Geriatric Research, Education, and Clinical Center (GRECC) (PAN), Tennessee Valley Veterans Affairs Health System, Nashville, TN. Electronic address: paul.newhouse@vanderbilt.edu.
2 Department of Psychiatry (SPR), College of Physicians & Surgeons, Columbia University, New York, NY.