Observing virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.

Multi-modal visuo-tactile stimulation of the type performed in the rubber hand illusion can induce the brain to temporarily incorporate external objects into the body image. In this study we show that audio-visual stimulation combined with mental imagery more rapidly elicits an elevated physiologica...

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Autores principales:	Karin Hägni, Kynan Eng, Marie-Claude Hepp-Reymond, Lisa Holper, Birgit Keisker, Ewa Siekierka, Daniel C Kiper
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2008
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c027953f94cf45028aa2fde2dcef5a44
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spelling	oai:doaj.org-article:c027953f94cf45028aa2fde2dcef5a442021-11-25T06:18:49ZObserving virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.1932-620310.1371/journal.pone.0003082https://doaj.org/article/c027953f94cf45028aa2fde2dcef5a442008-08-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18769476/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Multi-modal visuo-tactile stimulation of the type performed in the rubber hand illusion can induce the brain to temporarily incorporate external objects into the body image. In this study we show that audio-visual stimulation combined with mental imagery more rapidly elicits an elevated physiological response (skin conductance) after an unexpected threat to a virtual limb, compared to audio-visual stimulation alone. Two groups of subjects seated in front of a monitor watched a first-person perspective view of slow movements of two virtual arms intercepting virtual balls rolling towards the viewer. One group was instructed to simply observe the movements of the two virtual arms, while the other group was instructed to observe the virtual arms and imagine that the arms were their own. After 84 seconds the right virtual arm was unexpectedly "stabbed" by a knife and began "bleeding". This aversive stimulus caused both groups to show a significant increase in skin conductance. In addition, the observation-with-imagery group showed a significantly higher skin conductance (p<0.05) than the observation-only group over a 2-second period shortly after the aversive stimulus onset. No corresponding change was found in subjects' heart rates. Our results suggest that simple visual input combined with mental imagery may induce the brain to measurably temporarily incorporate external objects into its body image.Karin HägniKynan EngMarie-Claude Hepp-ReymondLisa HolperBirgit KeiskerEwa SiekierkaDaniel C KiperPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 3, Iss 8, p e3082 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Karin Hägni Kynan Eng Marie-Claude Hepp-Reymond Lisa Holper Birgit Keisker Ewa Siekierka Daniel C Kiper Observing virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.
description	Multi-modal visuo-tactile stimulation of the type performed in the rubber hand illusion can induce the brain to temporarily incorporate external objects into the body image. In this study we show that audio-visual stimulation combined with mental imagery more rapidly elicits an elevated physiological response (skin conductance) after an unexpected threat to a virtual limb, compared to audio-visual stimulation alone. Two groups of subjects seated in front of a monitor watched a first-person perspective view of slow movements of two virtual arms intercepting virtual balls rolling towards the viewer. One group was instructed to simply observe the movements of the two virtual arms, while the other group was instructed to observe the virtual arms and imagine that the arms were their own. After 84 seconds the right virtual arm was unexpectedly "stabbed" by a knife and began "bleeding". This aversive stimulus caused both groups to show a significant increase in skin conductance. In addition, the observation-with-imagery group showed a significantly higher skin conductance (p<0.05) than the observation-only group over a 2-second period shortly after the aversive stimulus onset. No corresponding change was found in subjects' heart rates. Our results suggest that simple visual input combined with mental imagery may induce the brain to measurably temporarily incorporate external objects into its body image.
format	article
author	Karin Hägni Kynan Eng Marie-Claude Hepp-Reymond Lisa Holper Birgit Keisker Ewa Siekierka Daniel C Kiper
author_facet	Karin Hägni Kynan Eng Marie-Claude Hepp-Reymond Lisa Holper Birgit Keisker Ewa Siekierka Daniel C Kiper
author_sort	Karin Hägni
title	Observing virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.
title_short	Observing virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.
title_full	Observing virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.
title_fullStr	Observing virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.
title_full_unstemmed	Observing virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.
title_sort	observing virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.
publisher	Public Library of Science (PLoS)
publishDate	2008
url	https://doaj.org/article/c027953f94cf45028aa2fde2dcef5a44
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Observing virtual arms that you imagine are yours increases the galvanic skin response to an unexpected threat.

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