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Young children have a specal gift for learning language .

Brain Imaging of Language Plasticity In Adopted Adults : Can a Second Language Replace The First ?. Young children have a specal gift for learning language . Age of acquisition of a first or second language is a mojor determinant of ultimate proficiency .

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Young children have a specal gift for learning language .

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  1. Brain Imaging of LanguagePlasticityInAdoptedAdults: Can a SecondLanguageReplaceTheFirst? • Youngchildrenhave a specalgiftforlearninglanguage. • Age of acquisition of a firstorsecondlanguage is a mojor determinant of ultimateproficiency. • Age-relatedmaturationalprocesses • Act of learningitself • However, weare NOT sure. • Severelastudieswithdifferent/oppositeresults.

  2. Doesexposuretothefirstlanguageleavelong-lastingtraces in theneuralcircuitsfacilitatinglanguageprocessing?

  3. Theresultssupportthe idea thatplasticchangesassociatedwithlanguageacquisition in thefirstyears of life arereversible. • Thebehavioralobservationsthatarecollectedalsosupporttheadoptedsubject’sclaimthattheyhavetotallyforgottentheirnativelanguage. • The data obtained in thestudysuggestthatwhen a secondlanguage is learnedearly on, thisacquisitiondoes not necessarilyinvolvedifferent brain sytemsthanthoseinvolvedlearningthenativelanguage. • Thisconclusion is in accordancewith a previous PET studyspokenlanguagecomprehension.

  4. DIFFERENCES BETWEEN ADOPTED SUBJECTS AND NATIVE FRENCH SUBJECTS • WhenlisteningtoFrenchrelativetoforeignstimuli, althoughthesameanatomicalregionswereactivated, theextend of activationtheextend of activationwaslarger in thenativeFrenchparticipantsrelativetotheKoreanadoptedsubjects. • Secondlanguage can replacefirstlanguage but thisreplacement is not complete. • ThenativeFrenchsubjects’ greaterexperiencewithFrenchmayhaveresulted in a widening of thecorticalmapsforlanguageprocessing. • Because of theirdesiretolearnabouttheirstatus, adoptedKoreanparticipantsmayhavepaidmoreattentiontothetasks.

  5. Activation in right STS of thenativeFrenchgroupwasstrongerthanthat of adoptedKoreans in Korean-Polishsubtraction test. • Itmay be dueto a relatveinhibition in theKoeansrelativetoFrenchGroup. • However, twogroupshaving no difference in Korean-JapaneseandKoean-Frenchsubstractiontestsmitigatestheinterpretationabove.

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