1. Department of Psychiatry and Yale University School of Medicine, New Haven, Connecticut.
2. Department of Medicine, Yale University School of Medicine, New Haven, Connecticut.
3. VA Connecticut Healthcare System, West Haven, Connecticut.
4. Department of Psychology, State University of New York, Oswego, New York.
5. Department of Neuroscience, Yale University School of Medicine, New Haven, Connecticut.
6. Interdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, Connecticut.