Inclusion Criteria:

Female subjects ages 18-45 whom meet criteria for BPD will be included in the study. The healthy controls will also be females between the ages 18-45. The healthy controls will undergo the same diagnostic and symptom evaluations as the female patients - these interview schedules will be used mainly for determining exclusion criteria. -

Exclusion Criteria:

1. Neither borderline personality disorder subjects or healthy controls may have a history of schizophrenia, schizoaffective disorder, bipolar illness, major depression with psychotic features, Obsessive-Compulsive Disorder (OCD), Post-Traumatic Stress Disorder (PTSD), or Generalized Anxiety Disorder (GAD).
2. Patients and healthy controls may not have a serious neurologic or other metabolic disorder or any medical condition or treatment known to affect the parameters of this study.
3. Neither patients nor healthy controls will be included in the study if they are receiving a medical treatment that requires a medication that may have psychotropic effects.
4. Neither patients nor healthy controls can have any contraindications to MRI scanning such as a metal implant, a pacemaker, or a history of claustrophobia. At the Center for Magnetic Resonance Research (CMRR), we have developed a highly specific and detailed questionnaire to ensure the safety of all participants. This questionnaire is administered prior to any and all scans.
5. Pregnant women will be excluded from the study. This will be assessed by history, date of last menstrual period and urine pregnancy test if necessary.
6. Neither patients nor healthy controls who fulfill criteria for developmental deficiency will be included.
7. Healthy controls with more than two borderline personality disorder criteria will not be eligible for study.

This is to reduce the possibility of healthy controls being "near misses" to the patients and diminishing the possibility of finding difference between the patients and the healthy controls.

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