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  Manipulating the perceived shape and color of a virtual limb can modulate pain responses

Matamala-Gomez, M., Nierula, B., Donegan, T., Slater, M., & Sanchez-Vives, M. V. (2020). Manipulating the perceived shape and color of a virtual limb can modulate pain responses. Journal of Clinical Medicine, 9(2): 291. doi:10.3390/jcm9020291.

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 Creators:
Matamala-Gomez, Marta1, 2, 3, Author
Nierula, Birgit1, 2, 4, Author              
Donegan, Tony1, Author
Slater, Mel2, Author
Sanchez-Vives, Maria V.1, 2, 5, 6, Author
Affiliations:
1Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain, ou_persistent22              
2Event-Lab, Department of Clinical Psychology and Psychobiology, University of Barcelona, Spain, ou_persistent22              
3Department of Human Sciences for Education, University of Milano–Bicocca, Italy, ou_persistent22              
4Max Planck Research Group Pain Perception, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2497695              
5Department of Cognition, Development and Educational Psychology, University of Barcelona, Spain, ou_persistent22              
6Catalan Institution for Research and Advanced Studies (ICREA), University Pompeu Fabra, Barcelona, Spain, ou_persistent22              

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Free keywords: Virtual reality; Pain perception; Telescoped effect; Amputee patients
 Abstract: Changes in body representation may affect pain perception. The effect of a distorted body image, such as the telescoping effect in amputee patients, on pain perception, is unclear. This study aimed to investigate whether distorting an embodied virtual arm in virtual reality (simulating the telescoping effect in amputees) modulated pain perception and anticipatory responses to pain in healthy participants. Twenty-seven right-handed participants were immersed in virtual reality and the virtual arm was shown with three different levels of distortion with a virtual threatening stimulus either approaching or contacting the virtual hand. We evaluated pain/discomfort ratings, ownership, and skin conductance responses (SCRs) after each condition. Viewing a distorted virtual arm enhances the SCR to a threatening event with respect to viewing a normal control arm, but when viewing a reddened-distorted virtual arm, SCR was comparatively reduced in response to the threat. There was a positive relationship between the level of ownership over the distorted and reddened-distorted virtual arms with the level of pain/discomfort, but not in the normal control arm. Contact with the threatening stimulus significantly enhances SCR and pain/discomfort, while reduced SCR and pain/discomfort were seen in the simulated-contact condition. These results provide further evidence of a bi-directional link between body image and pain perception.

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Language(s): eng - English
 Dates: 2020-01-112019-12-052020-01-182020-01-21
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.3390/jcm9020291
PMID: 31973014
PMC: PMC7074286
 Degree: -

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Title: Journal of Clinical Medicine
Source Genre: Journal
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Publ. Info: Basel : MDPI
Pages: - Volume / Issue: 9 (2) Sequence Number: 291 Start / End Page: - Identifier: ISSN: 2077-0383
CoNE: https://pure.mpg.de/cone/journals/resource/2077-0383