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Body ownership and experiential ownership in the self-touching illusion

We investigate two issues about the subjective experience of one's body: first, is the experience of owning a full-body fundamentally different from the experience of owning a body-part?Second, when I experience a bodily sensation, does it guarantee that I cannot be wrong about whether it is me...

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Autores principales: Liang, Caleb, Chang, Si-Yan, Chen, Wen-Yeo, Huang, Hsu-Chia, Lee, Yen-Tung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4344111/
https://www.ncbi.nlm.nih.gov/pubmed/25774138
http://dx.doi.org/10.3389/fpsyg.2014.01591
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author Liang, Caleb
Chang, Si-Yan
Chen, Wen-Yeo
Huang, Hsu-Chia
Lee, Yen-Tung
author_facet Liang, Caleb
Chang, Si-Yan
Chen, Wen-Yeo
Huang, Hsu-Chia
Lee, Yen-Tung
author_sort Liang, Caleb
collection PubMed
description We investigate two issues about the subjective experience of one's body: first, is the experience of owning a full-body fundamentally different from the experience of owning a body-part?Second, when I experience a bodily sensation, does it guarantee that I cannot be wrong about whether it is me who feels it? To address these issues, we conducted a series of experiments that combined the rubber hand illusion (RHI) and the “body swap illusion.” The subject wore a head mounted display (HMD) connected with a stereo camera set on the experimenter's head. Sitting face to face, they used their right hand holding a paintbrush to brush each other's left hand. Through the HMD, the subject adopted the experimenter's first-person perspective (1PP) as if it was his/her own 1PP: the subject watched either the experimenter's hand from the adopted 1PP, and/or the subject's own hand from the adopted third-person perspective (3PP) in the opposite direction (180°), or the subject's full body from the adopted 3PP (180°, with or without face). The synchronous full-body conditions generate a “self-touching illusion”: many participants felt that “I was brushing my own hand!” We found that (1) the sense of body-part ownership and the sense of full-body ownership are not fundamentally different from each other; and (2) our data present a strong case against the mainstream philosophical view called the immunity principle (IEM). We argue that it is possible for misrepresentation to occur in the subject's sense of “experiential ownership” (the sense that I am the one who is having this bodily experience). We discuss these findings and conclude that not only the sense of body ownership but also the sense of experiential ownership call for further interdisciplinary studies.
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spelling pubmed-43441112015-03-13 Body ownership and experiential ownership in the self-touching illusion Liang, Caleb Chang, Si-Yan Chen, Wen-Yeo Huang, Hsu-Chia Lee, Yen-Tung Front Psychol Psychology We investigate two issues about the subjective experience of one's body: first, is the experience of owning a full-body fundamentally different from the experience of owning a body-part?Second, when I experience a bodily sensation, does it guarantee that I cannot be wrong about whether it is me who feels it? To address these issues, we conducted a series of experiments that combined the rubber hand illusion (RHI) and the “body swap illusion.” The subject wore a head mounted display (HMD) connected with a stereo camera set on the experimenter's head. Sitting face to face, they used their right hand holding a paintbrush to brush each other's left hand. Through the HMD, the subject adopted the experimenter's first-person perspective (1PP) as if it was his/her own 1PP: the subject watched either the experimenter's hand from the adopted 1PP, and/or the subject's own hand from the adopted third-person perspective (3PP) in the opposite direction (180°), or the subject's full body from the adopted 3PP (180°, with or without face). The synchronous full-body conditions generate a “self-touching illusion”: many participants felt that “I was brushing my own hand!” We found that (1) the sense of body-part ownership and the sense of full-body ownership are not fundamentally different from each other; and (2) our data present a strong case against the mainstream philosophical view called the immunity principle (IEM). We argue that it is possible for misrepresentation to occur in the subject's sense of “experiential ownership” (the sense that I am the one who is having this bodily experience). We discuss these findings and conclude that not only the sense of body ownership but also the sense of experiential ownership call for further interdisciplinary studies. Frontiers Media S.A. 2015-01-20 /pmc/articles/PMC4344111/ /pubmed/25774138 http://dx.doi.org/10.3389/fpsyg.2014.01591 Text en Copyright © 2015 Liang, Chang, Chen, Huang and Lee. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Psychology
Liang, Caleb
Chang, Si-Yan
Chen, Wen-Yeo
Huang, Hsu-Chia
Lee, Yen-Tung
Body ownership and experiential ownership in the self-touching illusion
title Body ownership and experiential ownership in the self-touching illusion
title_full Body ownership and experiential ownership in the self-touching illusion
title_fullStr Body ownership and experiential ownership in the self-touching illusion
title_full_unstemmed Body ownership and experiential ownership in the self-touching illusion
title_short Body ownership and experiential ownership in the self-touching illusion
title_sort body ownership and experiential ownership in the self-touching illusion
topic Psychology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4344111/
https://www.ncbi.nlm.nih.gov/pubmed/25774138
http://dx.doi.org/10.3389/fpsyg.2014.01591
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