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dc.contributor.authorWagner, Jennifer B.en_US
dc.contributor.authorFox, Sharon E.en_US
dc.contributor.authorTager-Flusberg, Helenen_US
dc.contributor.authorNelson, Charles A.en_US
dc.date.accessioned2020-05-06T17:14:26Z
dc.date.available2020-05-06T17:14:26Z
dc.date.issued2011-01-01
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000208863700178&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=6e74115fe3da270499c3d65c9b17d654
dc.identifier.citationJennifer B Wagner, Sharon E Fox, Helen Tager-Flusberg, Charles A Nelson. 2011. "Neural processing of repetition and non-repetition grammars in 7-and 9-month-old infants." FRONTIERS IN PSYCHOLOGY, Volume 2, 8 pp. https://doi.org/10.3389/fpsyg.2011.00168
dc.identifier.issn1664-1078
dc.identifier.urihttps://hdl.handle.net/2144/40626
dc.description.abstractAn essential aspect of infant language development involves the extraction of meaningful information from a continuous stream of auditory input. Studies have identified early abilities to differentiate auditory input along various dimensions, including the presence or absence of structural regularities. In newborn infants, frontal and temporal regions were found to respond differentially to these regularities (Gervain et al., 2008), and in order to examine the development of this abstract rule learning we presented 7- and 9-month-old infants with syllables containing an ABB pattern (e.g., “balolo”) or an ABC pattern (e.g., “baloti”) and measured activity in left and right lateral brain regions using near-infrared spectroscopy (NIRS). While prior newborn work found increases in oxyhemoglobin (oxyHb) activity in response to ABB blocks as compared to ABC blocks in anterior regions, 7- and 9-month-olds showed no differentiation between grammars in oxyHb. However, changes in deoxyhemoglobin (deoxyHb) pointed to a developmental shift, whereby 7-month-olds showed deoxyHb responding significantly different from zero for ABB blocks, but not ABC blocks, and 9-month-olds showed the opposite pattern, with deoxyHb responding significantly different from zero for the ABC blocks but not the ABB blocks. DeoxyHb responses were more pronounced over anterior regions. A grammar by time interaction also illustrated that during the early blocks, deoxyHb was significantly greater to ABC than in later blocks, but there was no change in ABB activation over time. The shift from stronger activation to ABB in newborns (Gervain et al., 2008) and 7-month-olds in the present study to stronger activation to ABC by 9-month-olds here is discussed in terms of changes in stimulus salience and novelty preference over the first year of life. The present discussion also highlights the importance of future work exploring the coupling between oxyHb and deoxyHb activation in infant NIRS studies.en_US
dc.description.sponsorshipT32 MH016259 - NIMH NIH HHS; R01 DC010290 - NIDCD NIH HHS; R21 DC008637 - NIDCD NIH HHSen_US
dc.format.extent8 pagesen_US
dc.languageEnglish
dc.language.isoen_US
dc.publisherFRONTIERS RESEARCH FOUNDATIONen_US
dc.relation.ispartofFRONTIERS IN PSYCHOLOGY
dc.rights"Copyright: © 2011 Wagner, Fox, Tager-Flusberg and Nelson. This is an open-access article subject to a non-exclusive license between the authors and Frontiers Media SA, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and other Frontiers conditions are complied with."en_US
dc.subjectSocial sciencesen_US
dc.subjectPsychology, multidisciplinaryen_US
dc.subjectPsychologyen_US
dc.subjectinfancyen_US
dc.subjectAuditory processingen_US
dc.subjectNIRSen_US
dc.subjectOptical imagingen_US
dc.subjectLanguageen_US
dc.subjectCognitive sciencesen_US
dc.titleNeural processing of repetition and non-repetition grammars in 7-and 9-month-old infantsen_US
dc.typeArticleen_US
dc.identifier.doi10.3389/fpsyg.2011.00168
pubs.elements-sourceweb-of-scienceen_US
pubs.notesEmbargo: Not knownen_US
pubs.organisational-groupBoston Universityen_US
pubs.organisational-groupBoston University, College of Arts & Sciencesen_US
pubs.organisational-groupBoston University, College of Arts & Sciences, Department of Psychological & Brain Sciencesen_US
pubs.publication-statusPublisheden_US
dc.identifier.orcid0000-0002-8768-5414 (Tager-Flusberg, Helen)
dc.identifier.mycv110116


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