Borderline Personality Disorder and Automatic Processing of Valence and Self-Other Relevance Information

Enhanced sensitivity to emotion stimuli and poor differentiation between self and others have been proposed to be important features of borderline personality disorder (BPD). Automatic processing of affective stimuli provides information about valence (positive vs. negative) and relevance of valence (self vs. other). The objectives of our study were to investigate the efficiency of automatic processing of valence and relevance at a semantic level in BPD compared to healthy individuals.

A masked affective priming task, varying the valence and relevance of prime and target adjectives, was administered to 33 women with BPD and 33 healthy women. The forward and backward masked primes were shown for 50 ms. Subjects had the task of evaluating target words.

In the whole sample, a significant affective priming effect and a significant relevance priming effect occurred. BPD patients did not significantly differ from healthy individuals in affective priming or relevance priming after controlling for age, education, and intelligence. The presence of comorbid somatoform disorders was associated with increased affective priming and reduced relevance priming in BPD patients.

The efficiency of automatic recognition and the processing of valence information at a semantic level are not impaired in BPD. Moreover, BPD patients are able to perceive and differentiate automatically self- versus other-relevance during the perception of affective information like healthy controls. Thus, there is no evidence for enhanced sensitivity to emotion stimuli or poor differentiation between self and others in BPD at a very early stage of processing. The presence of somatoform disorders appears to influence affective as well as relevance priming in BPD.