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Influence of hand-arm self-avatar motion delay on the directional perception induced by an illusory sensation of being twisted
Sensory information from movements of body parts can alter their position when exposed to external physical stimuli. Visual information monitors the position and movement of body parts from an exterior perspective, whereas somatosensory information monitors them from an internal viewpoint. However,...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9033828/ https://www.ncbi.nlm.nih.gov/pubmed/35459875 http://dx.doi.org/10.1038/s41598-022-10543-y |
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author | Amemiya, Tomohiro |
author_facet | Amemiya, Tomohiro |
author_sort | Amemiya, Tomohiro |
collection | PubMed |
description | Sensory information from movements of body parts can alter their position when exposed to external physical stimuli. Visual information monitors the position and movement of body parts from an exterior perspective, whereas somatosensory information monitors them from an internal viewpoint. However, how such sensory data are integrated is unclear. In this study, a virtual reality (VR) system was used to evaluate the influence of the temporal difference between visual and somatosensory information from hand movements on the directional perception of a torque while modifying the visual appearance (human hand vs. non-human object) and visuohaptic congruency (congruent vs. incongruent) of self-avatars. Visual information was provided by the movement of the self-avatars in a VR environment, while somatosensory information was provided by vibrations with asymmetrical amplitudes that gave the participants the sensation of being continuously pushed or pulled without actually moving any body part. Delaying the movement of the avatar by 50 ms resulted in the sensitivity of the force direction perception to be lower with human hands than with non-human avatars, whereas a delay of 200 ms resulted in a higher sensitivity. This study can contribute to applications requiring multisensory integration in a VR environment. |
format | Online Article Text |
id | pubmed-9033828 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-90338282022-04-25 Influence of hand-arm self-avatar motion delay on the directional perception induced by an illusory sensation of being twisted Amemiya, Tomohiro Sci Rep Article Sensory information from movements of body parts can alter their position when exposed to external physical stimuli. Visual information monitors the position and movement of body parts from an exterior perspective, whereas somatosensory information monitors them from an internal viewpoint. However, how such sensory data are integrated is unclear. In this study, a virtual reality (VR) system was used to evaluate the influence of the temporal difference between visual and somatosensory information from hand movements on the directional perception of a torque while modifying the visual appearance (human hand vs. non-human object) and visuohaptic congruency (congruent vs. incongruent) of self-avatars. Visual information was provided by the movement of the self-avatars in a VR environment, while somatosensory information was provided by vibrations with asymmetrical amplitudes that gave the participants the sensation of being continuously pushed or pulled without actually moving any body part. Delaying the movement of the avatar by 50 ms resulted in the sensitivity of the force direction perception to be lower with human hands than with non-human avatars, whereas a delay of 200 ms resulted in a higher sensitivity. This study can contribute to applications requiring multisensory integration in a VR environment. Nature Publishing Group UK 2022-04-22 /pmc/articles/PMC9033828/ /pubmed/35459875 http://dx.doi.org/10.1038/s41598-022-10543-y Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Amemiya, Tomohiro Influence of hand-arm self-avatar motion delay on the directional perception induced by an illusory sensation of being twisted |
title | Influence of hand-arm self-avatar motion delay on the directional perception induced by an illusory sensation of being twisted |
title_full | Influence of hand-arm self-avatar motion delay on the directional perception induced by an illusory sensation of being twisted |
title_fullStr | Influence of hand-arm self-avatar motion delay on the directional perception induced by an illusory sensation of being twisted |
title_full_unstemmed | Influence of hand-arm self-avatar motion delay on the directional perception induced by an illusory sensation of being twisted |
title_short | Influence of hand-arm self-avatar motion delay on the directional perception induced by an illusory sensation of being twisted |
title_sort | influence of hand-arm self-avatar motion delay on the directional perception induced by an illusory sensation of being twisted |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9033828/ https://www.ncbi.nlm.nih.gov/pubmed/35459875 http://dx.doi.org/10.1038/s41598-022-10543-y |
work_keys_str_mv | AT amemiyatomohiro influenceofhandarmselfavatarmotiondelayonthedirectionalperceptioninducedbyanillusorysensationofbeingtwisted |