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The rubber hand illusion induced by visual-thermal stimulation

In the rubber hand illusion (RHI), synchronous touch of a real hand and an artificial hand leads to the feeling of the artificial hand belonging to one’s own body. This study examined whether the RHI can be induced using visual–thermal instead of visual–tactile stimulus patterns and to which extent...

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Autores principales: Trojan, Jörg, Fuchs, Xaver, Speth, Sophie-Louise, Diers, Martin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6102275/
https://www.ncbi.nlm.nih.gov/pubmed/30127441
http://dx.doi.org/10.1038/s41598-018-29860-2
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author Trojan, Jörg
Fuchs, Xaver
Speth, Sophie-Louise
Diers, Martin
author_facet Trojan, Jörg
Fuchs, Xaver
Speth, Sophie-Louise
Diers, Martin
author_sort Trojan, Jörg
collection PubMed
description In the rubber hand illusion (RHI), synchronous touch of a real hand and an artificial hand leads to the feeling of the artificial hand belonging to one’s own body. This study examined whether the RHI can be induced using visual–thermal instead of visual–tactile stimulus patterns and to which extent the congruency between temperature and colour of the visual stimulus influences the RHI. In a within-subject design, we presented cold vs. warm thermal stimuli to the participants’ hidden hand combined with red vs. blue visual stimuli presented synchronously vs. asynchronously at a fake hand. The RHI could be induced using visual–thermal stimuli, yielding RHI vividness ratings comparable to the visual-tactile variant. Congruent (warm–red, cold–blue) synchronous stimulus patterns led to higher RHI vividness than incongruent (warm–blue, cold–red) synchronous combinations; in the asynchronous conditions, an inverse effect was present. Temperature ratings mainly depended on the actual stimulus temperature and were higher with synchronous vs. asynchronous patterns; they were also slightly higher with red vs. blue light, but there were no interactions with temperature or synchrony. In conclusion, we demonstrated that the RHI can be induced via visual-thermal stimuli, opening new perspectives in research on multi-sensory integration and body representations.
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spelling pubmed-61022752018-08-27 The rubber hand illusion induced by visual-thermal stimulation Trojan, Jörg Fuchs, Xaver Speth, Sophie-Louise Diers, Martin Sci Rep Article In the rubber hand illusion (RHI), synchronous touch of a real hand and an artificial hand leads to the feeling of the artificial hand belonging to one’s own body. This study examined whether the RHI can be induced using visual–thermal instead of visual–tactile stimulus patterns and to which extent the congruency between temperature and colour of the visual stimulus influences the RHI. In a within-subject design, we presented cold vs. warm thermal stimuli to the participants’ hidden hand combined with red vs. blue visual stimuli presented synchronously vs. asynchronously at a fake hand. The RHI could be induced using visual–thermal stimuli, yielding RHI vividness ratings comparable to the visual-tactile variant. Congruent (warm–red, cold–blue) synchronous stimulus patterns led to higher RHI vividness than incongruent (warm–blue, cold–red) synchronous combinations; in the asynchronous conditions, an inverse effect was present. Temperature ratings mainly depended on the actual stimulus temperature and were higher with synchronous vs. asynchronous patterns; they were also slightly higher with red vs. blue light, but there were no interactions with temperature or synchrony. In conclusion, we demonstrated that the RHI can be induced via visual-thermal stimuli, opening new perspectives in research on multi-sensory integration and body representations. Nature Publishing Group UK 2018-08-20 /pmc/articles/PMC6102275/ /pubmed/30127441 http://dx.doi.org/10.1038/s41598-018-29860-2 Text en © The Author(s) 2018 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Trojan, Jörg
Fuchs, Xaver
Speth, Sophie-Louise
Diers, Martin
The rubber hand illusion induced by visual-thermal stimulation
title The rubber hand illusion induced by visual-thermal stimulation
title_full The rubber hand illusion induced by visual-thermal stimulation
title_fullStr The rubber hand illusion induced by visual-thermal stimulation
title_full_unstemmed The rubber hand illusion induced by visual-thermal stimulation
title_short The rubber hand illusion induced by visual-thermal stimulation
title_sort rubber hand illusion induced by visual-thermal stimulation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6102275/
https://www.ncbi.nlm.nih.gov/pubmed/30127441
http://dx.doi.org/10.1038/s41598-018-29860-2
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