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J Pers Disord. 2019 Feb 20:1-15. doi: 10.1521/pedi_2019_33_417. [Epub ahead of print]

Are Impairments in Theory of Mind Specific to Borderline Personality Disorder?

Author information

1
Section for Personality Psychiatry, Clinic for Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
2
Research Department, Division of Mental Health and Addiction, Vestfold Hospital Trust, Tonsberg, Norway.
3
Lovisenberg Diaconal Hospital, Oslo.
4
Institute for Clinical Medicine, University of Oslo.
5
NORMENT KG Jebsen Centre for Psychosis Research, Oslo University Hospital.
6
Department of Research and Development, Clinic for Mental Health and Addiction, Oslo University Hospital.

Abstract

Impaired theory of mind (ToM) is an assumed feature of borderline personality disorder (BPD). Yet, no studies have compared ToM abilities in patients with BPD, other personality disorders, and healthy controls, or investigated the relationship between ToM and severity of psychopathology and interpersonal problems. In this study, ToM was investigated by the Movie for the Assessment of Social Cognition. No differences were found between the three groups in overall ToM abilities. The BPD group was, however, characterized by more excessive ToM (interpreted as hypermentalization). Yet, when differentiating between BPD and further severity indicators, excessive ToM was not specifically associated with a BPD diagnosis per se. Finally, there was a moderate association between hypermentalization and interpersonal problems in the BPD group. This study suggests that BPD patients tend to hypermentalize when they misinterpret social information, and that this tendency is related to the severity of their psychopathology.

KEYWORDS:

borderline personality disorder; hypermentalization; interpersonal problems; social cognition; theory of mind

PMID:
30785865
DOI:
10.1521/pedi_2019_33_417

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