Contribution of interaction force to the sense of hand ownership and the sense of hand agency

Abstract When performing willed actions, we have the unified and coherent experience of owning and controlling our body. Body ownership is believed to emerge from the integration of coherent multisensory signals, while agency is believed to emerge from the coherence between predicted and perceived o...

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Autores principales:	Michel Akselrod, Bogdan Vigaru, Julio Duenas, Roberto Martuzzi, James Sulzer, Andrea Serino, Olaf Blanke, Roger Gassert
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b0bf87e70b88471dac02502bc01bbf78
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spelling	oai:doaj.org-article:b0bf87e70b88471dac02502bc01bbf782021-12-02T19:12:25ZContribution of interaction force to the sense of hand ownership and the sense of hand agency10.1038/s41598-021-97540-92045-2322https://doaj.org/article/b0bf87e70b88471dac02502bc01bbf782021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97540-9https://doaj.org/toc/2045-2322Abstract When performing willed actions, we have the unified and coherent experience of owning and controlling our body. Body ownership is believed to emerge from the integration of coherent multisensory signals, while agency is believed to emerge from the coherence between predicted and perceived outcomes of actions. As a consequence, body ownership and agency can both be modulated by multisensory conflicts. The contribution of active movement generation to ownership and agency has not been parametrically explored. Here, we investigated the contribution of interaction force between the agent and the environment to the sense of hand ownership (SO) and the sense of hand agency (SA). By combining robotics and virtual reality, we manipulated the sensorimotor and visual information during immersive scenarios to induce and quantify altered states of SO and SA. First, we demonstrated that SO and SA could be successfully manipulated by our experimental paradigms. Second, we showed that interaction force strongly contributes to SA, but to a lesser extent to SO. Finally, we showed that SO and SA interact beyond their common multisensory basis. Our results, based on two independent studies, provide a direct link between sensorimotor interactions and subjective body experience and demonstrate a new dissociation between SO and SA.Michel AkselrodBogdan VigaruJulio DuenasRoberto MartuzziJames SulzerAndrea SerinoOlaf BlankeRoger GassertNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-18 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michel Akselrod Bogdan Vigaru Julio Duenas Roberto Martuzzi James Sulzer Andrea Serino Olaf Blanke Roger Gassert Contribution of interaction force to the sense of hand ownership and the sense of hand agency
description	Abstract When performing willed actions, we have the unified and coherent experience of owning and controlling our body. Body ownership is believed to emerge from the integration of coherent multisensory signals, while agency is believed to emerge from the coherence between predicted and perceived outcomes of actions. As a consequence, body ownership and agency can both be modulated by multisensory conflicts. The contribution of active movement generation to ownership and agency has not been parametrically explored. Here, we investigated the contribution of interaction force between the agent and the environment to the sense of hand ownership (SO) and the sense of hand agency (SA). By combining robotics and virtual reality, we manipulated the sensorimotor and visual information during immersive scenarios to induce and quantify altered states of SO and SA. First, we demonstrated that SO and SA could be successfully manipulated by our experimental paradigms. Second, we showed that interaction force strongly contributes to SA, but to a lesser extent to SO. Finally, we showed that SO and SA interact beyond their common multisensory basis. Our results, based on two independent studies, provide a direct link between sensorimotor interactions and subjective body experience and demonstrate a new dissociation between SO and SA.
format	article
author	Michel Akselrod Bogdan Vigaru Julio Duenas Roberto Martuzzi James Sulzer Andrea Serino Olaf Blanke Roger Gassert
author_facet	Michel Akselrod Bogdan Vigaru Julio Duenas Roberto Martuzzi James Sulzer Andrea Serino Olaf Blanke Roger Gassert
author_sort	Michel Akselrod
title	Contribution of interaction force to the sense of hand ownership and the sense of hand agency
title_short	Contribution of interaction force to the sense of hand ownership and the sense of hand agency
title_full	Contribution of interaction force to the sense of hand ownership and the sense of hand agency
title_fullStr	Contribution of interaction force to the sense of hand ownership and the sense of hand agency
title_full_unstemmed	Contribution of interaction force to the sense of hand ownership and the sense of hand agency
title_sort	contribution of interaction force to the sense of hand ownership and the sense of hand agency
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b0bf87e70b88471dac02502bc01bbf78
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Contribution of interaction force to the sense of hand ownership and the sense of hand agency

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