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

研究成果: Article

43 引用 (Scopus)

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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.

元の言語English
ページ(範囲)1131-1142
ページ数12
ジャーナルConsciousness and Cognition
17
発行部数4
DOI
出版物ステータスPublished - 2008 12
外部発表Yes

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Hallucinations
Personality
Healthy Volunteers
Hand

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology

これを引用

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KW - Auditory hallucination

KW - Forward model

KW - Motor control

KW - Prediction

KW - Schizophrenia

KW - Schizotypy

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