This course will cover fundamental topics in psychopathology, with an emphasis on etiological and diagnostic issues, in the context of current nosology (Research Diagnostic Criteria, DSM-IV, etc.). Theoretical models of psychopathological phenomena and major syndromes (e.g., affective disorders, personality disorders, substance abuse) will be discussed, with reference to relevant empirical findings. Implications for treatment will also be addressed. Fulfills the "Individuals and Groups" requirement.