Received July 13, 2000; revision received Jan. 10, 2001; accepted Jan. 18, 2001. From the New York State Psychiatric Institute, the Departments of Psychiatry and Clinical Psychobiology, College of Physicians and Surgeons, Columbia University. Address reprint requests to Dr. Mathew, Department of Psychiatry, College of Physicians and Surgeons, Columbia University, 1051 Riverside Dr., Box 84, New York, NY 10032; [email protected]
(e-mail). Funded in part by NIH grant MH-00416 and Center for the Neural Systems of Fear and Anxiety grants MH-58911 and MH-00416 (to Dr. Gorman), a Scientist Development Awards for Clinicians grant MH-01039 (to Dr. Coplan), and a National Alliance for Research on Schizophrenia and Depression Young Investigator Award and a Psychiatric Institute Research Support grant (to Dr. Mathew). The authors thank Marc Laruelle, M.D., for his contributions.