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Borderline personality disorder (BPD) symptoms and suicidal behaviors are prevalent among undergraduate students. Although rumination contributes to self-destructive behaviors in BPD, less research examines the role of rumination in distinct suicidal outcomes among individuals with BPD features instead focusing more on self-destructive behaviors as a latent variable. The present study examined the main and interactive effects of BPD features and two forms of rumination (brooding and anger) in the prediction of suicide-related outcomes (ideation and attempts) among college students. Participants (

Background A fast-growing body of research provides support for the role of positive emotion dysregulation in the etiology and maintenance of a wide range of psychiatric difficulties and clinically relevant behaviors. However, this work has exclusively relied on the subjective assessment of positive emotion dysregulation. Advancing research, the current study examined associations between physiological and subjective indices of positive emotional responding in the laboratory. Specifically, we explored the relation of the Difficulties in Emotion Regulation Scale – Positive (Weiss, Gratz, & Lavender, 2015) to resting heart rate variability (HRV) at high and low state positive affect intensity. Methods Participants were 122 individuals recruited from college and community settings (Mage = 23.39, 84.4% female, 68.0% White). Results Findings indicated a positive relation between positive emotion dysregulation and resting HRV at high state positive affect and a negative relation between positive emotion dysregulation and resting HRV at low state positive affect. Conclusions Results extend our understanding of the associations among subjective and physiological indices of positive emotional processes. These findings have key implications for the conduct of research on positive emotion dysregulation.