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Reshaping the full body illusion through visuo-electro-tactile sensations

The physical boundaries of our body do not define what we perceive as self. This malleable representation arises from the neural integration of sensory information coming from the environment. Manipulating the visual and haptic cues produces changes in body perception, inducing the Full Body Illusio...

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Autores principales: Preatoni, Greta, Dell’Eva, Francesca, Valle, Giacomo, Pedrocchi, Alessandra, Raspopovic, Stanisa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9891501/
https://www.ncbi.nlm.nih.gov/pubmed/36724146
http://dx.doi.org/10.1371/journal.pone.0280628
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author Preatoni, Greta
Dell’Eva, Francesca
Valle, Giacomo
Pedrocchi, Alessandra
Raspopovic, Stanisa
author_facet Preatoni, Greta
Dell’Eva, Francesca
Valle, Giacomo
Pedrocchi, Alessandra
Raspopovic, Stanisa
author_sort Preatoni, Greta
collection PubMed
description The physical boundaries of our body do not define what we perceive as self. This malleable representation arises from the neural integration of sensory information coming from the environment. Manipulating the visual and haptic cues produces changes in body perception, inducing the Full Body Illusion (FBI), a vastly used approach to exploring humans’ perception. After pioneering FBI demonstrations, issues arose regarding its setup, using experimenter-based touch and pre-recorded videos. Moreover, its outcome measures are based mainly on subjective reports, leading to biased results, or on heterogeneous objective ones giving poor consensus on their validity. To address these limitations, we developed and tested a multisensory platform allowing highly controlled experimental conditions, thanks to the leveraged use of innovative technologies: Virtual Reality (VR) and Transcutaneous Electrical Nerve Stimulation (TENS). This enabled a high spatial and temporal precision of the visual and haptic cues, efficiently eliciting FBI. While it matched the classic approach in subjective measures, our setup resulted also in significant results for all objective measurements. Importantly, FBI was elicited when all 4 limbs were multimodally stimulated but also in a single limb condition. Our results behoove the adoption of a comprehensive set of measures, introducing a new neuroscientific platform to investigate body representations.
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spelling pubmed-98915012023-02-02 Reshaping the full body illusion through visuo-electro-tactile sensations Preatoni, Greta Dell’Eva, Francesca Valle, Giacomo Pedrocchi, Alessandra Raspopovic, Stanisa PLoS One Research Article The physical boundaries of our body do not define what we perceive as self. This malleable representation arises from the neural integration of sensory information coming from the environment. Manipulating the visual and haptic cues produces changes in body perception, inducing the Full Body Illusion (FBI), a vastly used approach to exploring humans’ perception. After pioneering FBI demonstrations, issues arose regarding its setup, using experimenter-based touch and pre-recorded videos. Moreover, its outcome measures are based mainly on subjective reports, leading to biased results, or on heterogeneous objective ones giving poor consensus on their validity. To address these limitations, we developed and tested a multisensory platform allowing highly controlled experimental conditions, thanks to the leveraged use of innovative technologies: Virtual Reality (VR) and Transcutaneous Electrical Nerve Stimulation (TENS). This enabled a high spatial and temporal precision of the visual and haptic cues, efficiently eliciting FBI. While it matched the classic approach in subjective measures, our setup resulted also in significant results for all objective measurements. Importantly, FBI was elicited when all 4 limbs were multimodally stimulated but also in a single limb condition. Our results behoove the adoption of a comprehensive set of measures, introducing a new neuroscientific platform to investigate body representations. Public Library of Science 2023-02-01 /pmc/articles/PMC9891501/ /pubmed/36724146 http://dx.doi.org/10.1371/journal.pone.0280628 Text en © 2023 Preatoni et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Preatoni, Greta
Dell’Eva, Francesca
Valle, Giacomo
Pedrocchi, Alessandra
Raspopovic, Stanisa
Reshaping the full body illusion through visuo-electro-tactile sensations
title Reshaping the full body illusion through visuo-electro-tactile sensations
title_full Reshaping the full body illusion through visuo-electro-tactile sensations
title_fullStr Reshaping the full body illusion through visuo-electro-tactile sensations
title_full_unstemmed Reshaping the full body illusion through visuo-electro-tactile sensations
title_short Reshaping the full body illusion through visuo-electro-tactile sensations
title_sort reshaping the full body illusion through visuo-electro-tactile sensations
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9891501/
https://www.ncbi.nlm.nih.gov/pubmed/36724146
http://dx.doi.org/10.1371/journal.pone.0280628
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