title: Multimodal assessment of emotional reactivity in borderline personality pathology: the moderating role of posttraumatic stress disorder symptoms.
abstract: Emotional reactivity has been theorized to play a central role in borderline personality (BP) pathology. Although growing research provides evidence for subjective emotional reactivity in BP pathology, research on physiological or biological reactivity among people with BP pathology is less conclusive. With regard to biological reactivity in particular, research on cortisol reactivity (a neurobiological marker of emotional reactivity) in response to stressors among individuals with BP pathology has produced contradictory results and highlighted the potential moderating role of PTSD-related pathology. Thus, this study sought to examine the moderating role of PTSD symptoms in the relation between BP pathology and both subjective (self-report) and biological (cortisol) emotional reactivity to a laboratory stressor. Participants were 171 patients in a residential substance use disorder treatment center. Consistent with hypotheses, results revealed a significant main effect of BP pathology on subjective emotional reactivity to the laboratory stressor. Furthermore, results revealed a significant interaction between BP pathology and PTSD symptoms in the prediction of cortisol reactivity, such that BP pathology was associated with heightened cortisol reactivity only among participants with low levels of PTSD symptoms. Similar findings were obtained when examining the interaction between BP pathology and the reexperiencing and avoidance/numbing symptoms of PTSD specifically. Results highlight the moderating role of PTSD symptoms in the BP-reactivity relation.
authors: Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, Mississippi, MS 39216, USA. kdixongordon@umc.edu
authors: Katherine L
authors: KL
authors: Dixon-Gordon
authors: Kim L
authors: KL
authors: Gratz
authors: Matthew T
authors: MT
authors: Tull
mesh_terms: D000293:Adolescent; D000328:Adult; D001883:Borderline Personality Disorder / Q000150:complications / Q000523:psychology*; D004644:Emotions; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010551:Personality; D011569:Psychiatric Status Rating Scales; D012720:Severity of Illness Index; D013313:Stress Disorders, Post-Traumatic / Q000150:complications / Q000523:psychology*; D013315:Stress, Psychological / Q000150:complications / Q000523:psychology*
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