Intact implicit statistical learning in borderline personality disorder

Unoka, Zsolt and Vizin, Gabriella and Bjelik, Anna and Radics, Dóra and Németh, Dezső and Janacsek, Karolina (2017) Intact implicit statistical learning in borderline personality disorder. PSYCHIATRY RESEARCH, 255. pp. 373-381. ISSN 0165-1781

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Abstract

Wide-spread neuropsychological deficits have been identified in borderline personality disorder (BPD). Previous research found impairments in decision making, declarative memory, working memory and executive functions; however, no studies have focused on implicit learning in BPD yet. The aim of our study was to investigate implicit statistical learning by comparing learning performance of 19 BPD patients and 19 healthy, age-, education- and gender-matched controls on a probabilistic sequence learning task. Moreover, we also tested whether participants retain the acquired knowledge after a delay period. To this end, participants were retested on a shorter version of the same task 24h after the learning phase. We found intact implicit statistical learning as well as retention of the acquired knowledge in this personality disorder. BPD patients seem to be able to extract and represent regularities implicitly, which is in line with the notion that implicit learning is less susceptible to illness compared to the more explicit processes.

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