Neural representations of ethologically relevant hand/mouth synergies in the human precentral gyrus
Identifieur interne : 000F99 ( Main/Curation ); précédent : 000F98; suivant : 001000Neural representations of ethologically relevant hand/mouth synergies in the human precentral gyrus
Auteurs : Michel Desmurget [France] ; Nathalie Richard [France] ; Sylvain Harquel [France] ; Pierre Baraduc [France] ; Alexandru Szathmari [France] ; Carmine Mottolese [France] ; Angela Sirigu [France]Source :
- Proceedings of the National Academy of Sciences of the United States of America [ 0027-8424 ] ; 2014.
Abstract
The motor repertoire of infants is narrow. Yet newborns can accurately bring their hands toward their mouth for self-feeding, thumb-sucking, or perioral exploration, thus showing fine coordinated movement synergies between the hand and mouth. Here, we show that these gestures of high ethological value are selectively encoded in the human brain and represented as integrated primitives within the precentral gyrus, a key region for sensorimotor processing. These findings have major implications for our understanding of the organization and phylogenesis of motor functions in primates.
Url:
DOI: 10.1073/pnas.1321909111
PubMed: 24706796
PubMed Central: 3992683
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PMC:3992683Le document en format XML
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<front><div type="abstract" xml:lang="en"><title>Significance</title>
<p>The motor repertoire of infants is narrow. Yet newborns can accurately bring their hands toward their mouth for self-feeding, thumb-sucking, or perioral exploration, thus showing fine coordinated movement synergies between the hand and mouth. Here, we show that these gestures of high ethological value are selectively encoded in the human brain and represented as integrated primitives within the precentral gyrus, a key region for sensorimotor processing. These findings have major implications for our understanding of the organization and phylogenesis of motor functions in primates.</p>
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