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Impact of visuomotor feedback on the embodiment of virtual hands detached from the body

It has been shown that mere observation of body discontinuity leads to diminished body ownership. However, the impact of body discontinuity has mainly been investigated in conditions where participants observe a collocated static virtual body from a first-person perspective. This study explores the...

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Autores principales: Seinfeld, Sofia, Müller, Jörg
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7773737/
https://www.ncbi.nlm.nih.gov/pubmed/33380732
http://dx.doi.org/10.1038/s41598-020-79255-5
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author Seinfeld, Sofia
Müller, Jörg
author_facet Seinfeld, Sofia
Müller, Jörg
author_sort Seinfeld, Sofia
collection PubMed
description It has been shown that mere observation of body discontinuity leads to diminished body ownership. However, the impact of body discontinuity has mainly been investigated in conditions where participants observe a collocated static virtual body from a first-person perspective. This study explores the influence of body discountinuity on the sense of embodiment, when rich visuomotor correlations between a real and an artificial virtual body are established. In two experiments, we evaluated body ownership and motor performance, when participants interacted in virtual reality either using virtual hands connected or disconnected from a body. We found that even under the presence of congruent visuomotor feedback, mere observation of body discontinuity resulted in diminished embodiment. Contradictory evidence was found in relation to motor performance, where further research is needed to understand the role of visual body discontinuity in motor tasks. Preliminary findings on physiological reactions to a threat were also assessed, indicating that body visual discontinuity does not differently impact threat-related skin conductance responses. The present results are in accordance with past evidence showing that body discontinuity negatively impacts embodiment. However, further research is needed to understand the influence of visuomotor feedback and body morphological congruency on motor performance and threat-related physiological reactions.
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spelling pubmed-77737372021-01-07 Impact of visuomotor feedback on the embodiment of virtual hands detached from the body Seinfeld, Sofia Müller, Jörg Sci Rep Article It has been shown that mere observation of body discontinuity leads to diminished body ownership. However, the impact of body discontinuity has mainly been investigated in conditions where participants observe a collocated static virtual body from a first-person perspective. This study explores the influence of body discountinuity on the sense of embodiment, when rich visuomotor correlations between a real and an artificial virtual body are established. In two experiments, we evaluated body ownership and motor performance, when participants interacted in virtual reality either using virtual hands connected or disconnected from a body. We found that even under the presence of congruent visuomotor feedback, mere observation of body discontinuity resulted in diminished embodiment. Contradictory evidence was found in relation to motor performance, where further research is needed to understand the role of visual body discontinuity in motor tasks. Preliminary findings on physiological reactions to a threat were also assessed, indicating that body visual discontinuity does not differently impact threat-related skin conductance responses. The present results are in accordance with past evidence showing that body discontinuity negatively impacts embodiment. However, further research is needed to understand the influence of visuomotor feedback and body morphological congruency on motor performance and threat-related physiological reactions. Nature Publishing Group UK 2020-12-30 /pmc/articles/PMC7773737/ /pubmed/33380732 http://dx.doi.org/10.1038/s41598-020-79255-5 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Seinfeld, Sofia
Müller, Jörg
Impact of visuomotor feedback on the embodiment of virtual hands detached from the body
title Impact of visuomotor feedback on the embodiment of virtual hands detached from the body
title_full Impact of visuomotor feedback on the embodiment of virtual hands detached from the body
title_fullStr Impact of visuomotor feedback on the embodiment of virtual hands detached from the body
title_full_unstemmed Impact of visuomotor feedback on the embodiment of virtual hands detached from the body
title_short Impact of visuomotor feedback on the embodiment of virtual hands detached from the body
title_sort impact of visuomotor feedback on the embodiment of virtual hands detached from the body
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7773737/
https://www.ncbi.nlm.nih.gov/pubmed/33380732
http://dx.doi.org/10.1038/s41598-020-79255-5
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