1. Associate Research Scientist, Department of Psychiatry, Yale University School of Medicine, New Haven, Conneticut
2. Assistant Professor of Clinical Psychology (in Psychiatry), Department of Psychiatry, Columbia University, College of Physicians and Surgeons, New York State Psychiatric Institute, New York, New York
3. Assistant Professor (Research), Department of Psychiatry and Human Behaviour, Brown University, Providence, Rhode Island
4. Professor, Department of Psychiatry, Yale University School of Medicine; Professor, Department of Psychology, Yale University, New Haven, Conneticut