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      Preschool language exposure and use: A comparison study of dual‐language learners and English monolingual children

      1 , 2 , 3
      Infant and Child Development
      Wiley

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          Abstract

          This study explored the language experiences of dual language learners (DLL; n = 19) and English monolinguals (EM; n = 13) in preschool classrooms where English is the primary language of instruction and many home languages are present. Using the Language ENvironment Analysis™ system as a primary tool, we quantitatively analysed an average of 34 hours of recordings collected over 5–8 days for each participating child ( M age = 52 months) in six classrooms. Results showed that, during a typical preschool day, DLLs spoke as much as EMs but received less adult talk overall and had more 5‐min segments with zero adult–child conversations than their EM peers. Follow‐up analyses revealed that teachers generally talked less when children initiated the conversations than when adults initiated the conversations, and this pattern was particularly evident for DLLs. Study implications and future research are discussed.

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          Mixed effects models and extensions in ecology with R

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            Detecting outliers: Do not use standard deviation around the mean, use absolute deviation around the median

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              Neural language networks at birth.

              The ability to learn language is a human trait. In adults and children, brain imaging studies have shown that auditory language activates a bilateral frontotemporal network with a left hemispheric dominance. It is an open question whether these activations represent the complete neural basis for language present at birth. Here we demonstrate that in 2-d-old infants, the language-related neural substrate is fully active in both hemispheres with a preponderance in the right auditory cortex. Functional and structural connectivities within this neural network, however, are immature, with strong connectivities only between the two hemispheres, contrasting with the adult pattern of prevalent intrahemispheric connectivities. Thus, although the brain responds to spoken language already at birth, thereby providing a strong biological basis to acquire language, progressive maturation of intrahemispheric functional connectivity is yet to be established with language exposure as the brain develops.
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                Author and article information

                Contributors
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                Journal
                Infant and Child Development
                Infant and Child Development
                Wiley
                1522-7227
                1522-7219
                May 2023
                April 11 2023
                May 2023
                : 32
                : 3
                Affiliations
                [1 ] Department of Human Sciences and Crane Center for Early Childhood Research and Policy The Ohio State University Columbus Ohio USA
                [2 ] Early Childhood Education Institute University of Oklahoma‐Tulsa Tulsa Oklahoma USA
                [3 ] School of Education Iowa State University Ames Iowa USA
                Article
                10.1002/icd.2420
                c2f4f24b-6489-4a5c-95df-bd44466607f7
                © 2023

                http://creativecommons.org/licenses/by-nc-nd/4.0/

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