A shared neural substrate for action verbs and observed actions in human posterior parietal cortex.
Journal
Science advances
ISSN: 2375-2548
Titre abrégé: Sci Adv
Pays: United States
ID NLM: 101653440
Informations de publication
Date de publication:
10 2020
10 2020
Historique:
received:
25
02
2020
accepted:
03
09
2020
entrez:
24
10
2020
pubmed:
25
10
2020
medline:
14
4
2022
Statut:
epublish
Résumé
High-level sensory and motor cortical areas are activated when processing the meaning of language, but it is unknown whether, and how, words share a neural substrate with corresponding sensorimotor representations. We recorded from single neurons in human posterior parietal cortex (PPC) while participants viewed action verbs and corresponding action videos from multiple views. We find that PPC neurons exhibit a common neural substrate for action verbs and observed actions. Further, videos were encoded with mixtures of invariant and idiosyncratic responses across views. Action verbs elicited selective responses from a fraction of these invariant and idiosyncratic neurons, without preference, thus associating with a statistical sampling of the diverse sensory representations related to the corresponding action concept. Controls indicated that the results are not the product of visual imagery or arbitrary learned associations. Our results suggest that language may activate the consolidated visual experience of the reader.
Identifiants
pubmed: 33097536
pii: 6/43/eabb3984
doi: 10.1126/sciadv.abb3984
pmc: PMC7608826
pii:
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : European Research Council
ID : 323606
Pays : International
Organisme : NIMH NIH HHS
ID : P50 MH094258
Pays : United States
Organisme : NEI NIH HHS
ID : R01 EY015545
Pays : United States
Organisme : NEI NIH HHS
ID : UG1 EY032039
Pays : United States
Informations de copyright
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
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