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Bilingualism increases neural response consistency and attentional control: Evidence for sensory and cognitive coupling
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Abstract:
Auditory processing is presumed to be influenced by cognitive processes – including attentional control – in a top-down manner. In bilinguals, activation of both languages during daily communication hones inhibitory skills, which subsequently bolster attentional control. We hypothesize that the heightened attentional demands of bilingual communication strengthens connections between cognitive (i.e., attentional control) and auditory processing, leading to greater across-trial consistency in the auditory evoked response (i.e., neural consistency) in bilinguals. To assess this, we collected passively-elicited auditory evoked responses to the syllable [da] and separately obtained measures of attentional control and language ability in adolescent Spanish-English bilinguals and English monolinguals. Bilinguals demonstrated enhanced attentional control and more consistent brainstem and cortical responses. In bilinguals, but not monolinguals, brainstem consistency tracked with language proficiency and attentional control. We interpret these enhancements in neural consistency as the outcome of strengthened attentional control that emerged from experience communicating in two languages.
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Article
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URL: https://doi.org/10.1016/j.bandl.2013.11.006 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3923605 http://www.ncbi.nlm.nih.gov/pubmed/24413593
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Neural processing of speech in children is influenced by bilingual experience
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Musicians' Enhanced Neural Differentiation of Speech Sounds Arises Early in Life: Developmental Evidence from Ages 3 to 30
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Beat synchronization predicts neural speech encoding and reading readiness in preschoolers
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Auditory learning through active engagement with sound: biological impact of community music lessons in at-risk children
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Engagement in community music classes sparks neuroplasticity and language development in children from disadvantaged backgrounds
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Longitudinal Effects of Group Music Instruction on Literacy Skills in Low-Income Children
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Auditory-motor entrainment and phonological skills: precise auditory timing hypothesis (PATH)
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