Modified sensory feedback enhances the sense of agency during continuous body movements in virtual reality

Abstract The sense of agency refers to the feeling of control over one’s own actions, and through them, the external events. This study examined the effect of modified visual feedback on the sense of agency over one’s body movements using virtual reality in healthy individuals whose motor control wa...

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Autores principales:	Kei Aoyagi, Wen Wen, Qi An, Shunsuke Hamasaki, Hiroshi Yamakawa, Yusuke Tamura, Atsushi Yamashita, Hajime Asama
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9570ae86ff274d3c81c46c2c8f6cce89
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spelling	oai:doaj.org-article:9570ae86ff274d3c81c46c2c8f6cce892021-12-02T13:27:32ZModified sensory feedback enhances the sense of agency during continuous body movements in virtual reality10.1038/s41598-021-82154-y2045-2322https://doaj.org/article/9570ae86ff274d3c81c46c2c8f6cce892021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82154-yhttps://doaj.org/toc/2045-2322Abstract The sense of agency refers to the feeling of control over one’s own actions, and through them, the external events. This study examined the effect of modified visual feedback on the sense of agency over one’s body movements using virtual reality in healthy individuals whose motor control was disturbed. Participants moved a virtual object using their right hand to trace a trajectory (Experiment 1) or a leading target (Experiment 2). Their motor control was disturbed by a delay in visual feedback (Experiment 1) or a 1-kg weight attached to their wrist (Experiment 2). In the offset conditions, the virtual object was presented at the median point between the desired position and the participants’ actual hand position. In both experiments, participants reported improved sense of agency in the offset condition compared to the aligned condition where the visual feedback reflected their actual body movements, despite their motion being less precise in the offset condition. The results show that sense of agency can be enhanced by modifying feedback to motor tasks according to the goal of the task, even when visual feedback is discrepant from the actual body movements. The present study sheds light on the possibility of artificially enhancing body agency to improve voluntary motor control.Kei AoyagiWen WenQi AnShunsuke HamasakiHiroshi YamakawaYusuke TamuraAtsushi YamashitaHajime AsamaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kei Aoyagi Wen Wen Qi An Shunsuke Hamasaki Hiroshi Yamakawa Yusuke Tamura Atsushi Yamashita Hajime Asama Modified sensory feedback enhances the sense of agency during continuous body movements in virtual reality
description	Abstract The sense of agency refers to the feeling of control over one’s own actions, and through them, the external events. This study examined the effect of modified visual feedback on the sense of agency over one’s body movements using virtual reality in healthy individuals whose motor control was disturbed. Participants moved a virtual object using their right hand to trace a trajectory (Experiment 1) or a leading target (Experiment 2). Their motor control was disturbed by a delay in visual feedback (Experiment 1) or a 1-kg weight attached to their wrist (Experiment 2). In the offset conditions, the virtual object was presented at the median point between the desired position and the participants’ actual hand position. In both experiments, participants reported improved sense of agency in the offset condition compared to the aligned condition where the visual feedback reflected their actual body movements, despite their motion being less precise in the offset condition. The results show that sense of agency can be enhanced by modifying feedback to motor tasks according to the goal of the task, even when visual feedback is discrepant from the actual body movements. The present study sheds light on the possibility of artificially enhancing body agency to improve voluntary motor control.
format	article
author	Kei Aoyagi Wen Wen Qi An Shunsuke Hamasaki Hiroshi Yamakawa Yusuke Tamura Atsushi Yamashita Hajime Asama
author_facet	Kei Aoyagi Wen Wen Qi An Shunsuke Hamasaki Hiroshi Yamakawa Yusuke Tamura Atsushi Yamashita Hajime Asama
author_sort	Kei Aoyagi
title	Modified sensory feedback enhances the sense of agency during continuous body movements in virtual reality
title_short	Modified sensory feedback enhances the sense of agency during continuous body movements in virtual reality
title_full	Modified sensory feedback enhances the sense of agency during continuous body movements in virtual reality
title_fullStr	Modified sensory feedback enhances the sense of agency during continuous body movements in virtual reality
title_full_unstemmed	Modified sensory feedback enhances the sense of agency during continuous body movements in virtual reality
title_sort	modified sensory feedback enhances the sense of agency during continuous body movements in virtual reality
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9570ae86ff274d3c81c46c2c8f6cce89
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Modified sensory feedback enhances the sense of agency during continuous body movements in virtual reality

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