Impulsivity in borderline personality disorder: impairment in self-report measures, but not behavioral inhibition.
BACKGROUND
Impulsivity is a core feature of borderline personality disorder (BPD). However, previous clinical and experimental studies investigating impulsivity in BPD rendered mixed results. In this study, impulsivity was assessed by self-report scales and behavioral inhibition tasks to compare different data levels.


METHODS
Fifteen women with BPD and 15 matched healthy control subjects (HC) completed the Barratt Impulsiveness Scale, Eysenck's Impulsivity Questionnaire and the UPPS (Urgency, Lack of Perseverance, Lack of Premeditation and Sensation Seeking) scale, and participated in a Stroop task, an antisaccade task and a stop signal task.


RESULTS
Patients with BPD scored significantly higher on self-report measures as compared to HC, but not in behavioral tests. In BPD patients, but not in HC, behavioral inhibition errors were correlated with more intense emotional state.


CONCLUSIONS
We found a discrepancy between self-report and behavioral data. Further studies need to assess additional possible mechanisms underlying increased impulsivity, their relation to emotional instability, and their neurobiological underpinnings.
Jacob
Gitta A
GA
Department of Psychiatry and Psychotherapy, University Medical Center Freiburg, Germany. gitta.jacob@uniklinik-freiburg.de
Gutz
Lea
L
Bader
Kerstin
K
Lieb
Klaus
K
Tüscher
Oliver
O
Stahl
Christoph
C
D000328:Adult; D001883:Borderline Personality Disorder / Q000150:complications / Q000523:psychology*; D005260:Female; D006801:Humans; D007175:Impulsive Behavior / Q000150:complications / Q000523:psychology*; D007266:Inhibition, Psychological; D009483:Neuropsychological Tests; D011569:Psychiatric Status Rating Scales; D012647:Self-Assessment; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires