Borderline personality disorder (BPD) is associated with the use of maladaptive emotion regulation (ER) that predicts unstable interpersonal relationships and emotion dysregulation. Rumination, a maladaptive cognitive ER response, may be one mechanism by which those with BPD experience emotion dysregulation. However, it remains unclear whether emotion dysregulation is linked to rumination in general, or to rumination during interpersonal situations that often prove challenging for those with BPD. The present study examined whether interpersonal exclusion conferred an increased risk to spontaneously ruminate among those with elevated BPD features relative to an impersonal negative mood induction, and whether spontaneous rumination mediated the effects of BPD features on distress reactivity. Overall, BPD features predicted stronger tendencies to spontaneously ruminate and higher levels of distress following interpersonal exclusion; spontaneous rumination following interpersonal exclusion mediated the effects of BPD features on distress. These findings highlight the importance of context when examining ER outcomes.

Objective We tested whether negative interpersonal events (NIEs) precipitate rumination at times of distress in the daily lives of those with borderline personality disorder (BPD) features and whether such responses mediate associations between BPD and the reactivity and recovery components of emotion dysregulation. Materials and Method One hundred twenty‐one women completed clinical interviews, survey measures, and a 7‐day ecological momentary assessment. Results Elevated BPD features predicted ruminative response deployment only in the context of NIEs. Though elevated BPD features and NIEs predicted heightened distress reactivity, the indirect effect of BPD on distress reactivity via ruminative responses was conditional on NIE occurrence. Ruminative responses also mediated the conditional effects of BPD features on prolonged recovery from distress; trait rumination served as a second indirect pathway between BPD features and distress recovery. Conclusion Results suggest that though contextual, rumination is a common pathway for emotional hyperarousal and slow recovery from distress for those with elevated BPD features.

The COVID-19 pandemic provided a unique opportunity for quantifying the impact of Five Factor Model personality domains (i.e. neuroticism, extraversion, openness, agreeableness, and conscientiousness) and COVID-related lifestyle changes on psychological distress. To examine these relationships, we designed and preregistered the present study (https://osf.io/qfw9h). We assessed a large, heterogeneous sample including undergraduates, graduate students, faculty, and staff of a large, public, Midwestern university (n = 1055) to ascertain whether personality domains uniquely predicted distress in response to COVID-19 shelter-in-place orders. This was a three-panel study in which the same potential participant pools were invited to participate at each survey announcement. Data collection occurred between early March through late May 2020, from within days of local shelter-in-place order onset to within days of reaching 100,000 COVID-related deaths in the USA. Domain and distress scores were determined from self-reported ratings on the Big Five Inventory and the 21-Item Depression Anxiety and Stress Scales, respectively. Participants also reported personal experiences with six COVID-specific lifestyle impacts: insufficient outdoor or indoor living space, job insecurity, income insecurity, or taking care of or homeschooling school-aged children during working hours. Zero-order correlations revealed that all personality domains except openness had statistically significant correlations with distress, and all correlations were negative except for that of neuroticism. When entered simultaneously, neuroticism was the predominant risk factor of distress that held across all preregistered and exploratory analyses. Our expectation that extraversion would be negatively associated with distress was not supported broadly, while agreeableness was a unique potential risk factor (though this effect was mostly limited to exploratory analyses). The results especially highlight the link between employment and income uncertainty with psychological distress, while also identifying insufficient indoor and outdoor space as potential risk factors. We hope these findings inform future public health action and further emphasize the utility of personality trait models in general.

Dimensional models of personality, such as the five-factor model (FFM), have demonstrated strong coherence with the presentation of personality disorders, including borderline personality disorder (BPD). Given that select personality trait elevations have been linked to impairments in multiple life domains across diagnostic groups, we sought to replicate findings from a previous investigation of the utility of the FFM in predicting BPD-relevant outcomes (i.e., negative affect intensity and instability, impulsivity, and interpersonal disagreements) in the daily lives of those with BPD (Hepp et al., 2016) and community participants. As interpersonal context is instrumental in determining the strength of effects observed in studies examining individuals with BPD, we utilized ecological momentary assessment across 3 weeks (6 times daily; n total = 15,889) to test whether close social contact (CSC) would moderate the effects of personality on momentary outcomes. Overall, results suggest that CSC is an important moderator between the effects of personality and daily life outcomes for individuals with BPD (N = 56), but not for community individuals (N = 60). For individuals with BPD, CSC may function as both a protective buffer and a risk factor, depending on outcome. For example, CSC attenuates experience of negative affect intensity for individuals with elevated neuroticism, but CSC may predict more frequent disagreements for individuals who report lower agreeableness. We replicated approximately half of the original study's findings, and results support that FFM personality is predictive of BPD-relevant outcomes broadly. However, interpersonal context is key to understanding these relationships for individuals with BPD.

Objective: This study investigated the impact of relational provocation on intimate partner violence (IPV) perpetration as a function of alcohol intoxication and individuals' emotion differentiation (ED; i.e., the ability to differentiate between positive and negative emotions). We hypothesized that provocation and acute intoxication would be associated with lower ED, such that individuals would demonstrate lower ED following provocation and while intoxicated. We also hypothesized an intoxication-by-ED interaction, such that only individuals who were intoxicated and undifferentiated would perpetrate IPV. Method: Two hundred fifty community-based adults completed an aggression paradigm ostensibly with their romantic partners where they were randomly assigned to an alcohol or no-alcohol condition. Participants' ED across positive and negative subscales was calculated at baseline (Time 1), postprovocation and intoxication (Time 2), and postbehavioral aggression (Time 3). IPV was operationalized as the strength and duration of shocks issued to their partner during the aggression paradigm. Results: Both sober and intoxicated participants experienced lower ED following provocation, suggesting a main effect of provocation but no main effect of intoxication. There was a significant alcohol-by-ED interaction in the predicted direction. For intoxicated participants, low ED was associated with greater IPV perpetration. For sober participants, low ED was associated with less IPV perpetration. Conclusions: Consistent with hypotheses, low ED is associated with greater IPV perpetration among intoxicated individuals. In contrast to prior research, low ED was associated with less IPV perpetration among sober individuals. Alcohol-related cognitive impairments may increase the likelihood of IPV perpetration by disrupting the ED process that may otherwise inhibit impulsive aggression. Public Health Significance StatementThe results of the present research improve our understanding of a significant public health concern: intimate partner violence (IPV). Specifically, results suggest that alcohol intoxication influences the association between a specific form of emotional processing (emotion differentiation) and IPV; therefore, interventions for IPV perpetrators may need to be modified to address emotional processes that occur after provocation, especially subsequent to alcohol use.