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Language or music, mother or Mozart? Structural and environmental influences on infants' language networks

Identifieur interne : 000041 ( France/Analysis ); précédent : 000040; suivant : 000042

Language or music, mother or Mozart? Structural and environmental influences on infants' language networks

Auteurs : G. Dehaene-Lambertz [France] ; A. Montavont [France] ; A. Jobert [France] ; L. Allirol [France] ; J. Dubois [France] ; L. Hertz-Pannier [France] ; S. Dehaene [France]

Source :

RBID : Pascal:10-0428326

Mots-clés :

Abstract

Understanding how language emerged in our species calls for a detailed investigation of the initial specialization of the human brain for speech processing. Our earlier research demonstrated that an adult-like left-lateralized network of perisylvian areas is already active when infants listen to sentences in their native language, but did not address the issue of the specialization of this network for speech processing. Here we used fMRI to study the organization of brain activity in two-month-old infants when listening to speech or to music. We also explored how infants react to their mother's voice relative to an unknown voice. The results indicate that the well-known structural asymmetry already present in the infants' posterior temporal areas has a functional counterpart: there is a left-hemisphere advantage for speech relative to music at the level of the planum temporale. The posterior temporal regions are thus differently sensitive to the auditory environment very early on, channelling speech inputs preferentially to the left side. Furthermore, when listening to the mother's voice, activation was modulated in several areas, including areas involved in emotional processing (amygdala, orbito-frontal cortex), but also, crucially, a large extent of the left posterior temporal lobe, suggesting that the mother's voice plays a special role in the early shaping of posterior language areas. Both results underscore the joint contributions of genetic constraints and environmental inputs in the fast emergence of an efficient cortical network for language processing in humans.


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Pascal:10-0428326

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<affiliation wicri:level="4">
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<s1>Université Paris 11</s1>
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<country>France</country>
<placeName>
<settlement type="city">Paris</settlement>
</placeName>
<orgName type="university">Université Paris-Sud</orgName>
<placeName>
<settlement type="city">Orsay</settlement>
<region type="region" nuts="2">Île-de-France</region>
</placeName>
</affiliation>
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<s1>IFR49, Neurospin</s1>
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<country>France</country>
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<name sortKey="Allirol, L" sort="Allirol, L" uniqKey="Allirol L" first="L." last="Allirol">L. Allirol</name>
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<country>France</country>
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<region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Gif/Yvette</settlement>
</placeName>
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<affiliation wicri:level="1">
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<s1>CEA, Laboratoire de Recherche Biomédicale, CEA/SAC/DSV/I2BM/NeuroSpin</s1>
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<country>France</country>
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<name sortKey="Dubois, J" sort="Dubois, J" uniqKey="Dubois J" first="J." last="Dubois">J. Dubois</name>
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<country>France</country>
<placeName>
<region type="region" nuts="2">Île-de-France</region>
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</placeName>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="05">
<s1>CEA, Laboratoire de Recherche Biomédicale, CEA/SAC/DSV/I2BM/NeuroSpin</s1>
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<s3>FRA</s3>
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<country>France</country>
<placeName>
<settlement type="city">Gif-sur-Yvette</settlement>
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</author>
<author>
<name sortKey="Hertz Pannier, L" sort="Hertz Pannier, L" uniqKey="Hertz Pannier L" first="L." last="Hertz-Pannier">L. Hertz-Pannier</name>
<affiliation wicri:level="4">
<inist:fA14 i1="02">
<s1>Université Paris 11</s1>
<s2>Paris</s2>
<s3>FRA</s3>
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<country>France</country>
<placeName>
<settlement type="city">Paris</settlement>
</placeName>
<orgName type="university">Université Paris-Sud</orgName>
<placeName>
<settlement type="city">Orsay</settlement>
<region type="region" nuts="2">Île-de-France</region>
</placeName>
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<country>France</country>
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<region type="region" nuts="2">Île-de-France</region>
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<country>France</country>
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<country>France</country>
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</author>
<author>
<name sortKey="Dehaene, S" sort="Dehaene, S" uniqKey="Dehaene S" first="S." last="Dehaene">S. Dehaene</name>
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<inist:fA14 i1="01">
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<country>France</country>
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<s1>Université Paris 11</s1>
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<country>France</country>
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<settlement type="city">Paris</settlement>
</placeName>
<orgName type="university">Université Paris-Sud</orgName>
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<settlement type="city">Orsay</settlement>
<region type="region" nuts="2">Île-de-France</region>
</placeName>
</affiliation>
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<region type="region" nuts="2">Île-de-France</region>
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</placeName>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="08">
<s1>Collége de France</s1>
<s2>Paris</s2>
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<country>France</country>
<placeName>
<settlement type="city">Paris</settlement>
</placeName>
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</author>
</analytic>
<series>
<title level="j" type="main">Brain and language : (Print)</title>
<title level="j" type="abbreviated">Brain lang. : (Print)</title>
<idno type="ISSN">0093-934X</idno>
<imprint>
<date when="2010">2010</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt>
<title level="j" type="main">Brain and language : (Print)</title>
<title level="j" type="abbreviated">Brain lang. : (Print)</title>
<idno type="ISSN">0093-934X</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>Amygdala</term>
<term>Encephalon</term>
<term>Experimental study</term>
<term>Functional imaging</term>
<term>Hearing</term>
<term>Hemispheric specialization</term>
<term>Infant</term>
<term>Language development</term>
<term>Laterality</term>
<term>Mother child relation</term>
<term>Music</term>
<term>Nuclear magnetic resonance imaging</term>
<term>Orbitofrontal cortex</term>
<term>Planum temporale</term>
<term>Temporal cortex</term>
<term>Verbal perception</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Développement verbal</term>
<term>Encéphale</term>
<term>Imagerie fonctionnelle</term>
<term>Imagerie RMN</term>
<term>Latéralité</term>
<term>Spécialisation hémisphérique</term>
<term>Musique</term>
<term>Perception verbale</term>
<term>Audition</term>
<term>Relation mère enfant</term>
<term>Cortex temporal</term>
<term>Planum temporale</term>
<term>Amygdale</term>
<term>Cortex orbitofrontal</term>
<term>Etude expérimentale</term>
<term>Nourrisson</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr">
<term>Musique</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">Understanding how language emerged in our species calls for a detailed investigation of the initial specialization of the human brain for speech processing. Our earlier research demonstrated that an adult-like left-lateralized network of perisylvian areas is already active when infants listen to sentences in their native language, but did not address the issue of the specialization of this network for speech processing. Here we used fMRI to study the organization of brain activity in two-month-old infants when listening to speech or to music. We also explored how infants react to their mother's voice relative to an unknown voice. The results indicate that the well-known structural asymmetry already present in the infants' posterior temporal areas has a functional counterpart: there is a left-hemisphere advantage for speech relative to music at the level of the planum temporale. The posterior temporal regions are thus differently sensitive to the auditory environment very early on, channelling speech inputs preferentially to the left side. Furthermore, when listening to the mother's voice, activation was modulated in several areas, including areas involved in emotional processing (amygdala, orbito-frontal cortex), but also, crucially, a large extent of the left posterior temporal lobe, suggesting that the mother's voice plays a special role in the early shaping of posterior language areas. Both results underscore the joint contributions of genetic constraints and environmental inputs in the fast emergence of an efficient cortical network for language processing in humans.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>France</li>
</country>
<region>
<li>Île-de-France</li>
</region>
<settlement>
<li>Gif-sur-Yvette</li>
<li>Gif/Yvette</li>
<li>Orsay</li>
<li>Paris</li>
</settlement>
<orgName>
<li>Université Paris-Sud</li>
</orgName>
</list>
<tree>
<country name="France">
<region name="Île-de-France">
<name sortKey="Dehaene Lambertz, G" sort="Dehaene Lambertz, G" uniqKey="Dehaene Lambertz G" first="G." last="Dehaene-Lambertz">G. Dehaene-Lambertz</name>
</region>
<name sortKey="Allirol, L" sort="Allirol, L" uniqKey="Allirol L" first="L." last="Allirol">L. Allirol</name>
<name sortKey="Allirol, L" sort="Allirol, L" uniqKey="Allirol L" first="L." last="Allirol">L. Allirol</name>
<name sortKey="Dehaene Lambertz, G" sort="Dehaene Lambertz, G" uniqKey="Dehaene Lambertz G" first="G." last="Dehaene-Lambertz">G. Dehaene-Lambertz</name>
<name sortKey="Dehaene Lambertz, G" sort="Dehaene Lambertz, G" uniqKey="Dehaene Lambertz G" first="G." last="Dehaene-Lambertz">G. Dehaene-Lambertz</name>
<name sortKey="Dehaene Lambertz, G" sort="Dehaene Lambertz, G" uniqKey="Dehaene Lambertz G" first="G." last="Dehaene-Lambertz">G. Dehaene-Lambertz</name>
<name sortKey="Dehaene, S" sort="Dehaene, S" uniqKey="Dehaene S" first="S." last="Dehaene">S. Dehaene</name>
<name sortKey="Dehaene, S" sort="Dehaene, S" uniqKey="Dehaene S" first="S." last="Dehaene">S. Dehaene</name>
<name sortKey="Dehaene, S" sort="Dehaene, S" uniqKey="Dehaene S" first="S." last="Dehaene">S. Dehaene</name>
<name sortKey="Dehaene, S" sort="Dehaene, S" uniqKey="Dehaene S" first="S." last="Dehaene">S. Dehaene</name>
<name sortKey="Dubois, J" sort="Dubois, J" uniqKey="Dubois J" first="J." last="Dubois">J. Dubois</name>
<name sortKey="Dubois, J" sort="Dubois, J" uniqKey="Dubois J" first="J." last="Dubois">J. Dubois</name>
<name sortKey="Hertz Pannier, L" sort="Hertz Pannier, L" uniqKey="Hertz Pannier L" first="L." last="Hertz-Pannier">L. Hertz-Pannier</name>
<name sortKey="Hertz Pannier, L" sort="Hertz Pannier, L" uniqKey="Hertz Pannier L" first="L." last="Hertz-Pannier">L. Hertz-Pannier</name>
<name sortKey="Hertz Pannier, L" sort="Hertz Pannier, L" uniqKey="Hertz Pannier L" first="L." last="Hertz-Pannier">L. Hertz-Pannier</name>
<name sortKey="Hertz Pannier, L" sort="Hertz Pannier, L" uniqKey="Hertz Pannier L" first="L." last="Hertz-Pannier">L. Hertz-Pannier</name>
<name sortKey="Hertz Pannier, L" sort="Hertz Pannier, L" uniqKey="Hertz Pannier L" first="L." last="Hertz-Pannier">L. Hertz-Pannier</name>
<name sortKey="Jobert, A" sort="Jobert, A" uniqKey="Jobert A" first="A." last="Jobert">A. Jobert</name>
<name sortKey="Jobert, A" sort="Jobert, A" uniqKey="Jobert A" first="A." last="Jobert">A. Jobert</name>
<name sortKey="Jobert, A" sort="Jobert, A" uniqKey="Jobert A" first="A." last="Jobert">A. Jobert</name>
<name sortKey="Montavont, A" sort="Montavont, A" uniqKey="Montavont A" first="A." last="Montavont">A. Montavont</name>
<name sortKey="Montavont, A" sort="Montavont, A" uniqKey="Montavont A" first="A." last="Montavont">A. Montavont</name>
<name sortKey="Montavont, A" sort="Montavont, A" uniqKey="Montavont A" first="A." last="Montavont">A. Montavont</name>
</country>
</tree>
</affiliations>
</record>

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