1. From the Research Imaging Center (P.K., D.G., A.W., P.T.F.), and Department of Psychiatry (R.L.O.), University of Texas Health Science Center at San Antonio, San Antonio, Texas; the Department of Psychiatry (D.G., A.W.), Yale University & Olin Neuropsychiatric Research Center, New Haven, Conn; and the Southwest Foundation for Biomedical Research (P.K., R.D., R.L.O., S.A.O., T.D.D., L.A., J.B.), San Antonio, Texas.