Inclusion Criteria:  - Medically healthy men and women with Borderline Personality Disorder who are mentally competent and give informed voluntary written consent.  Exclusion Criteria:  Age > 55 Criteria for Schizotypal Personality Disorder or Avoidant Personality Disorder. SPD is excluded to avoid possible confound from the restricted affect that characterizes SPD and co-morbid AvPD subjects will be excluded because the researchers have shown that their patterns of neural activity in emotion processing are distinct from BPD subjects.