An illusion of disownership over one’s own limb is associated with pain perception
Abstract Viewing one’s body and even a fake/virtual body experienced as one’s own has been suggested to modulate pain perception. However, what happens to pain perception when one’s own body part is felt as not belonging to one? We designed a paradigm to induce an illusory feeling of disownership re...
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-03-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-29993-z |
| _version_ | 1797864783307866112 |
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| author | Yuta Nishiyama Chihiro Yamashita Shusaku Nomura |
| author_facet | Yuta Nishiyama Chihiro Yamashita Shusaku Nomura |
| author_sort | Yuta Nishiyama |
| collection | DOAJ |
| description | Abstract Viewing one’s body and even a fake/virtual body experienced as one’s own has been suggested to modulate pain perception. However, what happens to pain perception when one’s own body part is felt as not belonging to one? We designed a paradigm to induce an illusory feeling of disownership regarding one’s limb, investigating whether the feeling affects pain threshold. Participants observed right-side images of their bodies from a third-person perspective via a head-mounted display in real-time. Following instructions, they moved their left hand while keeping their left elbow behind the upper body, so that the connection of their arm to the torso was not visible (test condition), or in front of it, so they could see the arm being part of them (control condition). Then, pain threshold was tested with a thermal stimulator. We found a significantly higher strength of disownership in the test condition than in the control condition. While there was no pain modulation within and between conditions, disownership ratings negatively correlated with pain-threshold changes, where the participants reporting explicit disownership showed lower pain-threshold changes than the others. The finding suggests that while multisensory disintegration had no modulatory effect, the individual sense of disownership was associated with pain perception. |
| first_indexed | 2024-04-09T22:57:50Z |
| format | Article |
| id | doaj.art-e7b7851a3fca4547be1fde95169d032e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T22:57:50Z |
| publishDate | 2023-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-e7b7851a3fca4547be1fde95169d032e2023-03-22T11:10:22ZengNature PortfolioScientific Reports2045-23222023-03-011311910.1038/s41598-023-29993-zAn illusion of disownership over one’s own limb is associated with pain perceptionYuta Nishiyama0Chihiro Yamashita1Shusaku Nomura2Department of Information and Management Systems Engineering, Nagaoka University of TechnologyDepartment of Information and Management Systems Engineering, Nagaoka University of TechnologyDepartment of Information and Management Systems Engineering, Nagaoka University of TechnologyAbstract Viewing one’s body and even a fake/virtual body experienced as one’s own has been suggested to modulate pain perception. However, what happens to pain perception when one’s own body part is felt as not belonging to one? We designed a paradigm to induce an illusory feeling of disownership regarding one’s limb, investigating whether the feeling affects pain threshold. Participants observed right-side images of their bodies from a third-person perspective via a head-mounted display in real-time. Following instructions, they moved their left hand while keeping their left elbow behind the upper body, so that the connection of their arm to the torso was not visible (test condition), or in front of it, so they could see the arm being part of them (control condition). Then, pain threshold was tested with a thermal stimulator. We found a significantly higher strength of disownership in the test condition than in the control condition. While there was no pain modulation within and between conditions, disownership ratings negatively correlated with pain-threshold changes, where the participants reporting explicit disownership showed lower pain-threshold changes than the others. The finding suggests that while multisensory disintegration had no modulatory effect, the individual sense of disownership was associated with pain perception.https://doi.org/10.1038/s41598-023-29993-z |
| spellingShingle | Yuta Nishiyama Chihiro Yamashita Shusaku Nomura An illusion of disownership over one’s own limb is associated with pain perception Scientific Reports |
| title | An illusion of disownership over one’s own limb is associated with pain perception |
| title_full | An illusion of disownership over one’s own limb is associated with pain perception |
| title_fullStr | An illusion of disownership over one’s own limb is associated with pain perception |
| title_full_unstemmed | An illusion of disownership over one’s own limb is associated with pain perception |
| title_short | An illusion of disownership over one’s own limb is associated with pain perception |
| title_sort | illusion of disownership over one s own limb is associated with pain perception |
| url | https://doi.org/10.1038/s41598-023-29993-z |
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