Evolutionary neuroanatomical expansion of Broca's region serving a human-specific function.
Broca’s area
action
brain evolution
language
Journal
Trends in neurosciences
ISSN: 1878-108X
Titre abrégé: Trends Neurosci
Pays: England
ID NLM: 7808616
Informations de publication
Date de publication:
10 2023
10 2023
Historique:
received:
20
03
2023
revised:
23
06
2023
accepted:
20
07
2023
medline:
22
9
2023
pubmed:
19
8
2023
entrez:
18
8
2023
Statut:
ppublish
Résumé
The question concerning the evolution of language is directly linked to the debate on whether language and action are dependent or not and to what extent Broca's region serves as a common neural basis. The debate resulted in two opposing views, one arguing for and one against the dependence of language and action mainly based on neuroscientific data. This article presents an evolutionary neuroanatomical framework which may offer a solution to this dispute. It is proposed that in humans, Broca's region houses language and action independently in spatially separated subregions. This became possible due to an evolutionary expansion of Broca's region in the human brain, which was not paralleled by a similar expansion in the chimpanzee's brain, providing additional space needed for the neural representation of language in humans.
Identifiants
pubmed: 37596132
pii: S0166-2236(23)00164-9
doi: 10.1016/j.tins.2023.07.004
pii:
doi:
Types de publication
Journal Article
Review
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
786-796Informations de copyright
Copyright © 2023 The Author. Published by Elsevier Ltd.. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests The author declares no competing interests in relation to this work.