Specificity of affective instability in patients with borderline personality disorder compared to posttraumatic stress disorder, bulimia nervosa, and healthy controls.
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Ambulatory assessment study of the specificity of affective instability in borderline personality disorder; 'replicate' here refers to confirming a clinical finding, and the object is psychopathology.
The study examines affective instability across psychiatric disorders, not research practice.
Clinical psychology study of affective instability across diagnostic groups; psychopathology object.
Résumé
Affective instability is a core feature of borderline personality disorder (BPD). The use of advanced assessment methodologies and appropriate statistical analyses has led to consistent findings that indicate a heightened instability in patients with BPD compared with healthy controls. However, few studies have investigated the specificity of affective instability among patients with BPD with regard to relevant clinical control groups. In this study, 43 patients with BPD, 28 patients with posttraumatic stress disorder (PTSD), 20 patients with bulimia nervosa (BN), and 28 healthy controls carried e-diaries for 24 hours and were prompted to rate their momentary affective states approximately every 15 minutes while awake. To quantify instability, we used 3 state-of-the-art indices: multilevel models for squared successive differences (SSDs), multilevel models for probability of acute changes (PACs), and aggregated point-by-point changes (APPCs). Patients with BPD displayed heightened affective instability for emotional valence and distress compared with healthy controls, regardless of the specific instability indices. These results directly replicate earlier studies. However, affective instability did not seem to be specific to patients with BPD. With regard to SSDs, PACs, and APPCs, patients with PTSD or BN showed a similar heightened instability of affect (emotional valence and distress) to that of patients with BPD. Our results give raise to the discussion if affective instability is a transdiagnostic or a disorder-specific mechanism. Current evidence cannot answer this question, but investigating psychopathological mechanisms in everyday life across disorders is a promising approach to enhance validity and specificity of mental health diagnoses.
Conservé avec la notice de tri, où il sert de preuve aux étiquettes ci-dessus.
La notice
- Revue
- Journal of Abnormal Psychology
- Thématique
- Personality Disorders and Psychopathology
- Domaine
- Psychology
- Établissements canadiens
- Child, Adolescent and Family Mental Health
- Organismes subventionnaires
- National Institute on Alcohol Abuse and Alcoholism
- Mots-clés
- Borderline personality disorderPsychologyPsychopathologyBulimia nervosaDistressClinical psychologyValence (chemistry)PsychiatryEmotional dysregulationEating disorders
- Résumé présent dans OpenAlex
- oui