The relationship between impulsivity, aggression, and impulsive-aggression in borderline personality disorder: An empirical analysis of self-report measures

Impulsivity has been repeatedly identified as a key construct in BPD; however, Its precise definition seems to vary especially regarding the overlap with aggression. The term impulsive-aggression, also generally seen as central to an understanding of BPD, seems to address itself to the interface between the two, but has itself been used inconsistently in the literature, sometimes having reference to a unitary phenotypic dimension, and at other times suggesting some combination of distinct traits. This study examined the relationship between multiple measures of impulsivity, aggression, and impulsive-aggression in a BPD sample (N = 92) in order to clarify the relationship between these measured constructs in this clinical population. Results show little relationship between measures of aggression and impulsivity in BPD, with measures of impulsive-aggression correlating strongly with measures of aggression only. Implications of the present results for future research and clinical work with BPD are discussed.