The Relationship Between the Virtual Hand Illusion and Motor Performance
Bodily self-consciousness consists of agency (i.e., the feeling of controlling one’s actions and causing external events) and body ownership (i.e., the feeling that one’s body belongs to one’s self). If a visual presentation of a virtual (fake) hand matches the active movement of a real hand, both t...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-11-01
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| Series: | Frontiers in Psychology |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fpsyg.2018.02242/full |
| _version_ | 1811264308959510528 |
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| author | Satoshi Shibuya Satoshi Unenaka Yukari Ohki |
| author_facet | Satoshi Shibuya Satoshi Unenaka Yukari Ohki |
| author_sort | Satoshi Shibuya |
| collection | DOAJ |
| description | Bodily self-consciousness consists of agency (i.e., the feeling of controlling one’s actions and causing external events) and body ownership (i.e., the feeling that one’s body belongs to one’s self). If a visual presentation of a virtual (fake) hand matches the active movement of a real hand, both the agency and body ownership of the virtual hand are induced [i.e., the active virtual hand illusion (VHI)]. However, previous active VHI studies have rarely considered the effects of goal-related movement errors (i.e., motor performance) on the senses of agency and ownership. Hence, the current study aimed to clarify the relationship between the active VHI and motor performance. To induce the VHI, 18 healthy subjects (three men and 15 women; 20.7 ± 7.3 years) were required to continuously move a virtual hand around a circle at a predetermined speed (i.e., spatial and temporal goals) using their active hand movements. While moving the virtual hand actively, five visual feedback delays were introduced: 90, 210, 330, 450, and 570 ms. It was found that the subjective ratings of both the agency and body ownership of the virtual hand decreased as a function of the delay intervals, whereas most of the spatial and temporal movement errors linearly increased. Using multiple regression analyses, we examined whether the agency and ownership ratings could be explained effectively by both the delay and movement errors. The results demonstrated that the agency was determined not only by the delay but also by the movement variability, whereas the body ownership was mostly determined by the delay. These findings suggest a possibility that the goal-related motor performance of the active VHI influences the agency judgment more strongly, while its effect on the ownership judgment is weaker. |
| first_indexed | 2024-04-12T20:01:58Z |
| format | Article |
| id | doaj.art-20cb904939474ffb9e4a588845c9d04a |
| institution | Directory Open Access Journal |
| issn | 1664-1078 |
| language | English |
| last_indexed | 2024-04-12T20:01:58Z |
| publishDate | 2018-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Psychology |
| spelling | doaj.art-20cb904939474ffb9e4a588845c9d04a2022-12-22T03:18:31ZengFrontiers Media S.A.Frontiers in Psychology1664-10782018-11-01910.3389/fpsyg.2018.02242410970The Relationship Between the Virtual Hand Illusion and Motor PerformanceSatoshi Shibuya0Satoshi Unenaka1Yukari Ohki2Department of Integrative Physiology, Kyorin University School of Medicine, Tokyo, JapanDepartment of Sport Education, School of Lifelong Sport, Hokusho University, Ebetsu, JapanDepartment of Integrative Physiology, Kyorin University School of Medicine, Tokyo, JapanBodily self-consciousness consists of agency (i.e., the feeling of controlling one’s actions and causing external events) and body ownership (i.e., the feeling that one’s body belongs to one’s self). If a visual presentation of a virtual (fake) hand matches the active movement of a real hand, both the agency and body ownership of the virtual hand are induced [i.e., the active virtual hand illusion (VHI)]. However, previous active VHI studies have rarely considered the effects of goal-related movement errors (i.e., motor performance) on the senses of agency and ownership. Hence, the current study aimed to clarify the relationship between the active VHI and motor performance. To induce the VHI, 18 healthy subjects (three men and 15 women; 20.7 ± 7.3 years) were required to continuously move a virtual hand around a circle at a predetermined speed (i.e., spatial and temporal goals) using their active hand movements. While moving the virtual hand actively, five visual feedback delays were introduced: 90, 210, 330, 450, and 570 ms. It was found that the subjective ratings of both the agency and body ownership of the virtual hand decreased as a function of the delay intervals, whereas most of the spatial and temporal movement errors linearly increased. Using multiple regression analyses, we examined whether the agency and ownership ratings could be explained effectively by both the delay and movement errors. The results demonstrated that the agency was determined not only by the delay but also by the movement variability, whereas the body ownership was mostly determined by the delay. These findings suggest a possibility that the goal-related motor performance of the active VHI influences the agency judgment more strongly, while its effect on the ownership judgment is weaker.https://www.frontiersin.org/article/10.3389/fpsyg.2018.02242/fullbodily self-consciousnessagencybody ownershipmovement errorrubber hand illusiondelayed visual feedback |
| spellingShingle | Satoshi Shibuya Satoshi Unenaka Yukari Ohki The Relationship Between the Virtual Hand Illusion and Motor Performance Frontiers in Psychology bodily self-consciousness agency body ownership movement error rubber hand illusion delayed visual feedback |
| title | The Relationship Between the Virtual Hand Illusion and Motor Performance |
| title_full | The Relationship Between the Virtual Hand Illusion and Motor Performance |
| title_fullStr | The Relationship Between the Virtual Hand Illusion and Motor Performance |
| title_full_unstemmed | The Relationship Between the Virtual Hand Illusion and Motor Performance |
| title_short | The Relationship Between the Virtual Hand Illusion and Motor Performance |
| title_sort | relationship between the virtual hand illusion and motor performance |
| topic | bodily self-consciousness agency body ownership movement error rubber hand illusion delayed visual feedback |
| url | https://www.frontiersin.org/article/10.3389/fpsyg.2018.02242/full |
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