Dr. Zweig’s current research is focused on relationships between personality pathology, depression, and social functioning in older adults. Recent research interests have also included risk and protective factors related to psychopathology and functional decline in older adults, and doctoral level training in mental health and aging. Teaching interests include integrative clinical assessment, and the assessment and treatment of older adults. His publications and presentations have focused on the following themes: inter-relationships of personality, personality pathology, depression, and functional impairment in older adults, and gero-psychology training.