Journal

The Japanese journal of neuropsychology

[Vol.26 No.2 contents]
Japanese/English

Full Text of this Article
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ArticleTitle A computational approach to the rehabilitation for the patients with somatosensory impairment
Language J
AuthorList Kazuyoshi Fukuzawa1), Yasuharu Koike2)
Affiliation 1)Department of Psychology, School of Literature, Waseda University
2)Precision and Intelligence Laboratory, Tokyo Institute of Technology
Publication Japanese Journal of Neuropsychology: 26 (2), 143-150, 2010
Received
Accepted
Abstract In order to screen neurological patients for the presence or absence of functional impairment, we employed a simple loading task using an internal forward model of the motor system based on the computational theory of posture control. In the self-loading task, the patients were required to put an object on their left palm with their right hand while in the non-self-loading task, the examiner put the object on their palm. Since a motor command in a self- task accompanies its efferent copy, subjects with a normal, internal forward model should be able to predict the end result of the motor command; i.e. their hand does not move. However, patients with parietal and cerebellar lesions moved their hands during the self-task, suggesting that they have some functional impairment in the internal forward model of the motor system. We suggest these patients are candidates for rehabilitation of posture control.
Keywords forward model, computational theory, posture control, efferent copy, loading task

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