Schizotypal personality traits and prediction of one's own movements in motor control: What causes an abnormal sense of agency?

Tomohisa Asai*, Eriko Sugimori, Yoshihiko Tanno

*この研究の対応する著者

研究成果査読

47 被引用数 (Scopus)

抄録

Background. Positive schizophrenic symptoms, especially passivity phenomena, including auditory hallucinations, may be caused by an abnormal sense of agency, which people with schizotypal personality traits also tend to exhibit. A sense of agency asserts that it is oneself who is causing or generating an action. It is possible that this abnormal sense of self-agency is attributable to the abnormal prediction of one's own movements in motor control. Method. We conducted an experiment using the "disappeared cursor" paradigm in which non-clinical, healthy participants were required to click on a target using an invisible mouse cursor. Prediction error was defined as the distance between the target and the click point. Results. The results showed that schizotypal personality traits, but not depressive or anxious traits, were correlated with deficits in predicting movements of the subjects' left hand. In particular, auditory hallucination proneness had the strongest relationship with movement prediction error. In this report, we also discuss the error tendency (overestimations or underestimations of one's own movements). Conclusions. This finding is in accordance with the idea that passivity phenomena or proneness may be caused by the abnormal prediction of one's own actions or movements.

本文言語English
ページ(範囲)1131-1142
ページ数12
ジャーナルConsciousness and Cognition
17
4
DOI
出版ステータスPublished - 2008 12
外部発表はい

ASJC Scopus subject areas

  • 実験心理学および認知心理学
  • 発達心理学および教育心理学

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