Boredom in Borderline Personality Disorder: A Lost Criterion Reconsidered.

Difficulty with boredom was eliminated from the formal diagnostic criteria for borderline personality disorder (BPD) in 1994 based on significantly limited, unpublished data. However, it is apparent in clinical practice that boredom remains relevant to BPD. This review synthesizes empirical research, with consideration of theoretical accounts, to critically examine the relevance of boredom to BPD. We first briefly review issues in defining and measuring boredom and offer an expanded conceptualization for BPD, which includes the notion of boredom reactivity, before turning to boredom's differentiation from and overlap with feelings of emptiness, with which it was paired prior to its removal from the DSM. We then discuss perspectives on boredom's significance in BPD, briefly touching on its relevance in other personality disorders. We propose a Boredom Cascade Model that articulates how boredom and boredom reactivity interact with identity disturbance and chronic emptiness to create escalating patterns of behavioral dysregulation and make recommendations for research and treatment.

Modulation of Trust in Borderline Personality Disorder by Script-Based Imaginal Exposure to Betrayal.

Interpersonal and trust-related difficulties are central features of borderline personality disorder (BPD). In this study, we applied script-driven betrayal imagery to evoke mistrustful behavior in a social reinforcement learning task. In 21 BPD and 20 healthy control (HC) participants, we compared this approach to the standard confederate paradigm used in research studies. The script-driven imagery evoked a transient increase in negative affect and also decreased trusting behavior to a similar degree in both groups. Across conditions, we also replicated previously reported between-group differences in negative affect (increased in BPD) and task behavior (more sensitive to social cues in BPD). These results support the validity of script-driven imagery as an alternative social task stimulus. This script-driven imagery approach is appealing for clinical research studies on reinforcement learning because it eliminates deception, scales easily, and evokes disorder-specific states of social difficulty.