Spatial proximity to others induces plastic changes in the neural representation of the peripersonal space.
Behavioral neuroscience
Cognitive neuroscience
Sensory neuroscience
Journal
iScience
ISSN: 2589-0042
Titre abrégé: iScience
Pays: United States
ID NLM: 101724038
Informations de publication
Date de publication:
20 Jan 2023
20 Jan 2023
Historique:
received:
29
04
2022
revised:
21
11
2022
accepted:
22
12
2022
entrez:
19
1
2023
pubmed:
20
1
2023
medline:
20
1
2023
Statut:
epublish
Résumé
Peripersonal space (PPS) is a highly plastic "invisible bubble" surrounding the body whose boundaries are mapped through multisensory integration. Yet, it is unclear how the spatial proximity to others alters PPS boundaries. Across five experiments (N = 80), by recording behavioral and electrophysiological responses to visuo-tactile stimuli, we demonstrate that the proximity to others induces plastic changes in the neural PPS representation. The spatial proximity to someone else's hand shrinks the portion of space within which multisensory responses occur, thus reducing the PPS boundaries. This suggests that PPS representation, built from bodily and multisensory signals, plastically adapts to the presence of conspecifics to define the self-other boundaries, so that what is usually coded as "my space" is recoded as "your space". When the space is shared with conspecifics, it seems adaptive to move the other-space away from the self-space to discriminate whether external events pertain to the self-body or to other-bodies.
Identifiants
pubmed: 36654859
doi: 10.1016/j.isci.2022.105879
pii: S2589-0042(22)02152-6
pmc: PMC9840938
doi:
Types de publication
Journal Article
Langues
eng
Pagination
105879Informations de copyright
© 2022 The Author(s).
Déclaration de conflit d'intérêts
The authors declare no competing interests.
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