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  On the neurocognitive co‐evolution of tool behavior and language: Insights from the massive redeployment framework

Osiurak, F., Crétel, C., Uomini, N., Bryche, C., Lesourd, M., & Reynaud, E. (2021). On the neurocognitive co‐evolution of tool behavior and language: Insights from the massive redeployment framework. Topics in Cognitive Science, 13(4), 684-707. doi:10.1111/tops.12577.

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Osiurak, François, Author
Crétel, Caroline, Author
Uomini, Natalie1, Author           
Bryche, Chloé, Author
Lesourd, Mathieu, Author
Reynaud, Emanuelle, Author
Affiliations:
1Department of Linguistic and Cultural Evolution, Max Planck Institute for Evolutionary Anthropology, Max Planck Society, Deutscher Platz 6, 04103 Leipzig, DE, ou_3237541              

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 Abstract: Understanding the link between brain evolution and the evolution of distinctive features of modern human cognition is a fundamental challenge. A still unresolved question concerns the co-evolution of tool behavior (i.e., tool use or tool making) and language. The shared neurocognitive processes hypothesis suggests that the emergence of the combinatorial component of language skills within the frontal lobe/Broca's area made possible the complexification of tool-making skills. The importance of the frontal lobe/Broca's area in tool behavior is somewhat surprising with regard to the literature on neuropsychology and cognitive neuroscience, which has instead stressed the critical role of the left inferior parietal lobe. Therefore, to be complete, any version of the shared neurocognitive processes hypothesis needs to integrate the potential interactions between the frontal lobe/Broca's area and the left inferior parietal lobe as well as their co-evolution at a phylogenetic level. Here, we sought to provide the first elements of answer through the use of the massive deployment framework, which posits that evolutionarily older brain areas are deployed in more cognitive functions (i.e., they are less specific). We focused on the left parietal cortex, and particularly the left areas PF, PGI, and anterior intraparietal (AIP), which are known to be involved in tool use, language, and motor control, respectively. The deployment of each brain area in different cognitive functions was measured by conducting a meta-analysis of neuroimaging studies. Our results confirmed the pattern of specificity for each brain area and also showed that the left area PGI was far less specific than the left areas PF and AIP. From these findings, we discuss the different evolutionary scenarios depicting the potential co-evolution of the combinatorial and generative components of language and tool behavior in our lineage.

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Language(s): eng - English
 Dates: 2021-10-062021-10
 Publication Status: Published in print
 Pages: 24
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1111/tops.12577
 Degree: -

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Title: Topics in Cognitive Science
Source Genre: Journal
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Pages: - Volume / Issue: 13 (4) Sequence Number: - Start / End Page: 684 - 707 Identifier: ISSN: 1756-8757
ISSN: 1756-8765