Inclusion Criteria:  For the 3 groups:  female Age between 13 and 17 years inclusive Oral and written comprehension of the French language Affiliation to the social security scheme Informed consent signed by the legal representatives holding the exercise of parental authority and the adolescent herself  For patients:  Diagnosis of borderline personality disorder according to the criteria of the Diagnostic and Statistical Manual for mental disorders, fifth edition (DSM-5; American Psychiatric Association, 2013; SIDP-IV) Level of general psychopathology compatible with participation in the study (score> 20 on the CGA-S)  TB + / PTSD + group:  - Post-traumatic stress disorder according to DSM-5 criteria (American Psychiatric Association, 2013; K-SADS-PL)  In the control group :  Absence of mental disorder according to DSM-5 criteria (American Psychiatric Association, 2013; K-SADS-PL and SIDP-IV) Oral and written comprehension of the French language Informed consent signed by the legal representative, the holder (s) of the exercise of parental authority and the adolescent herself  Exclusion Criteria:  - Illiteracy / illiteracy Sensory disorder (visual, auditory) Severe chronic psychiatric comorbidity: autism spectrum disorder, intellectual disability, schizophrenia spectrum disorder and other psychotic disorders, bipolar disorder Severe or current brain pathology (chronic neurological disease, encephalitis, history of severe head trauma), alertness disorder History of anoxic coma Contraindication to MRI (magnetic foreign body, claustrophobia, contraindication to prolonged lying down) Severe physical pathology in progress Moving outside the Normandy region planned within 18 months The inclusion of the subject in another biomedical research protocol (during the present study) Intellectual deficit (IQ <70) Pregnant or breastfeeding women