What you learn & when you learn it: Impact of early bilingual & music experience on the structural characteristics of auditory-motor pathways.
Identifieur interne : 000096 ( Main/Exploration ); précédent : 000095; suivant : 000097What you learn & when you learn it: Impact of early bilingual & music experience on the structural characteristics of auditory-motor pathways.
Auteurs : Lucía Vaquero [Canada] ; Paul-Noel Rousseau [Canada] ; Diana Vozian [Canada] ; Denise Klein [Canada] ; Virginia Penhune [Canada]Source :
- NeuroImage [ 1095-9572 ] ; 2020.
Abstract
Music and language engage the dorsal auditory pathway, linked by the arcuate fasciculus (AF). Sustained practice in these activities can modify brain structure, depending on length of experience but also age of onset (AoO). To study the impact of early experience on brain structure we manually dissected the AF in bilinguals with and without music training (MT) who differed in the AoO of their second language (L2), or MT. We found the usual left-greater-than-right asymmetry in the volume of the long segment (LS) of the AF across all groups. However, simultaneous exposure to two languages from birth enhanced this leftward asymmetry, while early start of MT (≤7) enhanced the right LS macrostructure, reducing the normative asymmetry. Thus, immersive exposure to an L2 in the first year of life can produce long-term plastic effects on the left LS, which is considered to be largely under genetic control, while deliberate music training in early childhood alters the right LS, whose structure appears more open to experience. These findings show that AoO of specific experience plays a key role in a complex gene-environment interaction model where normative brain maturation is differentially impacted by diverse intensive auditory-motor experiences at different points during development.
DOI: 10.1016/j.neuroimage.2020.116689
PubMed: 32119984
Affiliations:
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Sustained practice in these activities can modify brain structure, depending on length of experience but also age of onset (AoO). To study the impact of early experience on brain structure we manually dissected the AF in bilinguals with and without music training (MT) who differed in the AoO of their second language (L2), or MT. We found the usual left-greater-than-right asymmetry in the volume of the long segment (LS) of the AF across all groups. However, simultaneous exposure to two languages from birth enhanced this leftward asymmetry, while early start of MT (≤7) enhanced the right LS macrostructure, reducing the normative asymmetry. Thus, immersive exposure to an L2 in the first year of life can produce long-term plastic effects on the left LS, which is considered to be largely under genetic control, while deliberate music training in early childhood alters the right LS, whose structure appears more open to experience. These findings show that AoO of specific experience plays a key role in a complex gene-environment interaction model where normative brain maturation is differentially impacted by diverse intensive auditory-motor experiences at different points during development.</div></front></TEI><pubmed><MedlineCitation Status="In-Process" Owner="NLM"><PMID Version="1">32119984</PMID><DateRevised><Year>2020</Year><Month>08</Month><Day>26</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1095-9572</ISSN><JournalIssue CitedMedium="Internet"><Volume>213</Volume><PubDate><Year>2020</Year><Month>06</Month></PubDate></JournalIssue><Title>NeuroImage</Title><ISOAbbreviation>Neuroimage</ISOAbbreviation></Journal><ArticleTitle>What you learn & when you learn it: Impact of early bilingual & music experience on the structural characteristics of auditory-motor pathways.</ArticleTitle><Pagination><MedlinePgn>116689</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S1053-8119(20)30176-2</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.neuroimage.2020.116689</ELocationID><Abstract><AbstractText>Music and language engage the dorsal auditory pathway, linked by the arcuate fasciculus (AF). Sustained practice in these activities can modify brain structure, depending on length of experience but also age of onset (AoO). To study the impact of early experience on brain structure we manually dissected the AF in bilinguals with and without music training (MT) who differed in the AoO of their second language (L2), or MT. We found the usual left-greater-than-right asymmetry in the volume of the long segment (LS) of the AF across all groups. However, simultaneous exposure to two languages from birth enhanced this leftward asymmetry, while early start of MT (≤7) enhanced the right LS macrostructure, reducing the normative asymmetry. Thus, immersive exposure to an L2 in the first year of life can produce long-term plastic effects on the left LS, which is considered to be largely under genetic control, while deliberate music training in early childhood alters the right LS, whose structure appears more open to experience. These findings show that AoO of specific experience plays a key role in a complex gene-environment interaction model where normative brain maturation is differentially impacted by diverse intensive auditory-motor experiences at different points during development.</AbstractText><CopyrightInformation>Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Vaquero</LastName><ForeName>Lucía</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Laboratory for Motor Learning and Neural Plasticity, Department of Psychology, Concordia University, Montreal, QC, Canada; Center for Research on Brain, Language and Music (CRBLM), Montreal, QC, Canada. Electronic address: lucvaq01@ucm.es.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Rousseau</LastName><ForeName>Paul-Noel</ForeName><Initials>PN</Initials><AffiliationInfo><Affiliation>Laboratory for Motor Learning and Neural Plasticity, Department of Psychology, Concordia University, Montreal, QC, Canada; Montreal Neurological Institute, McGill University, Montreal, QC, Canada; Center for Research on Brain, Language and Music (CRBLM), Montreal, QC, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Vozian</LastName><ForeName>Diana</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Laboratory for Motor Learning and Neural Plasticity, Department of Psychology, Concordia University, Montreal, QC, Canada; Center for Research on Brain, Language and Music (CRBLM), Montreal, QC, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Klein</LastName><ForeName>Denise</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Montreal Neurological Institute, McGill University, Montreal, QC, Canada; Center for Research on Brain, Language and Music (CRBLM), Montreal, QC, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Penhune</LastName><ForeName>Virginia</ForeName><Initials>V</Initials><AffiliationInfo><Affiliation>Laboratory for Motor Learning and Neural Plasticity, Department of Psychology, Concordia University, Montreal, QC, Canada; Center for Research on Brain, Language and Music (CRBLM), Montreal, QC, Canada; International Laboratory for Brain, Music, and Sound Research (BRAMS), Montreal, QC, Canada.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>MOP-11541</GrantID><Agency>CIHR</Agency><Country>Canada</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>02</Month><Day>29</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Neuroimage</MedlineTA><NlmUniqueID>9215515</NlmUniqueID><ISSNLinking>1053-8119</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">Arcuate fasciculus</Keyword><Keyword MajorTopicYN="Y">Bilingualism</Keyword><Keyword MajorTopicYN="Y">Brain plasticity</Keyword><Keyword MajorTopicYN="Y">Music training</Keyword><Keyword MajorTopicYN="Y">Sensitive periods</Keyword></KeywordList><CoiStatement>Declaration of competing interest None declared.</CoiStatement></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2019</Year><Month>08</Month><Day>27</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2020</Year><Month>01</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>02</Month><Day>25</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>3</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>3</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>3</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32119984</ArticleId><ArticleId IdType="pii">S1053-8119(20)30176-2</ArticleId><ArticleId IdType="doi">10.1016/j.neuroimage.2020.116689</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country><region><li>Québec</li></region><settlement><li>Montréal</li></settlement><orgName><li>Université McGill</li></orgName></list><tree><country name="Canada"><noRegion><name sortKey="Vaquero, Lucia" sort="Vaquero, Lucia" uniqKey="Vaquero L" first="Lucía" last="Vaquero">Lucía Vaquero</name></noRegion><name sortKey="Klein, Denise" sort="Klein, Denise" uniqKey="Klein D" first="Denise" last="Klein">Denise Klein</name><name sortKey="Penhune, Virginia" sort="Penhune, Virginia" uniqKey="Penhune V" first="Virginia" last="Penhune">Virginia Penhune</name><name sortKey="Rousseau, Paul Noel" sort="Rousseau, Paul Noel" uniqKey="Rousseau P" first="Paul-Noel" last="Rousseau">Paul-Noel Rousseau</name><name sortKey="Vozian, Diana" sort="Vozian, Diana" uniqKey="Vozian D" first="Diana" last="Vozian">Diana Vozian</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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