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Facial feedback effect on the sense of body ownership during the rubber hand illusion
The sense of body ownership, a feeling that one’s body belongs to the self, is an essential aspect of self-consciousness. Studies have focused on emotions and bodily states that could influence multisensory integration for the sense of body ownership. Based on the Facial Feedback Hypothesis, the pur...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10050436/ https://www.ncbi.nlm.nih.gov/pubmed/37007678 http://dx.doi.org/10.3389/fnhum.2023.976290 |
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author | Kaneno, Yoshitaka Ashida, Hiroshi |
author_facet | Kaneno, Yoshitaka Ashida, Hiroshi |
author_sort | Kaneno, Yoshitaka |
collection | PubMed |
description | The sense of body ownership, a feeling that one’s body belongs to the self, is an essential aspect of self-consciousness. Studies have focused on emotions and bodily states that could influence multisensory integration for the sense of body ownership. Based on the Facial Feedback Hypothesis, the purpose of this study was to examine whether displaying specific facial expressions affects the rubber hand illusion. We hypothesized that the expression of a smiling face changes the emotional experience and facilitates the formation of a sense of body ownership. In the experiment, participants (n = 30) were asked to hold a wooden chopstick in their mouths to simulate smile, neutral, and disgusted facial expressions during the induction of the rubber hand illusion. The results did not support the hypothesis, showing that proprioceptive drift (an index of illusory experience) was enhanced when the subjects displayed a disgusted facial expression, while the subjective reports of the illusion were not affected. These results, together with the previous studies regarding the effect of positive emotions, suggest that bodily affective information, regardless of its valence, facilitates multisensory integration and could influence the conscious representation of the bodily self. |
format | Online Article Text |
id | pubmed-10050436 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-100504362023-03-30 Facial feedback effect on the sense of body ownership during the rubber hand illusion Kaneno, Yoshitaka Ashida, Hiroshi Front Hum Neurosci Neuroscience The sense of body ownership, a feeling that one’s body belongs to the self, is an essential aspect of self-consciousness. Studies have focused on emotions and bodily states that could influence multisensory integration for the sense of body ownership. Based on the Facial Feedback Hypothesis, the purpose of this study was to examine whether displaying specific facial expressions affects the rubber hand illusion. We hypothesized that the expression of a smiling face changes the emotional experience and facilitates the formation of a sense of body ownership. In the experiment, participants (n = 30) were asked to hold a wooden chopstick in their mouths to simulate smile, neutral, and disgusted facial expressions during the induction of the rubber hand illusion. The results did not support the hypothesis, showing that proprioceptive drift (an index of illusory experience) was enhanced when the subjects displayed a disgusted facial expression, while the subjective reports of the illusion were not affected. These results, together with the previous studies regarding the effect of positive emotions, suggest that bodily affective information, regardless of its valence, facilitates multisensory integration and could influence the conscious representation of the bodily self. Frontiers Media S.A. 2023-03-15 /pmc/articles/PMC10050436/ /pubmed/37007678 http://dx.doi.org/10.3389/fnhum.2023.976290 Text en Copyright © 2023 Kaneno and Ashida. https://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) and the copyright owner(s) 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 | Neuroscience Kaneno, Yoshitaka Ashida, Hiroshi Facial feedback effect on the sense of body ownership during the rubber hand illusion |
title | Facial feedback effect on the sense of body ownership during the rubber hand illusion |
title_full | Facial feedback effect on the sense of body ownership during the rubber hand illusion |
title_fullStr | Facial feedback effect on the sense of body ownership during the rubber hand illusion |
title_full_unstemmed | Facial feedback effect on the sense of body ownership during the rubber hand illusion |
title_short | Facial feedback effect on the sense of body ownership during the rubber hand illusion |
title_sort | facial feedback effect on the sense of body ownership during the rubber hand illusion |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10050436/ https://www.ncbi.nlm.nih.gov/pubmed/37007678 http://dx.doi.org/10.3389/fnhum.2023.976290 |
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