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Sex differences in subcortical auditory processing only partially explain higher prevalence of language disorders in males
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In: Hear Res (2020)
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Distinct Rhythmic Abilities Align With Phonological Awareness And Rapid Naming In School-Age Children
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In: Cogn Process (2020)
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Stable auditory processing underlies phonological awareness in typically developing preschoolers
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In: Brain Lang (2019)
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Analyzing the FFR: A tutorial for decoding the richness of auditory function
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In: Hear Res (2019)
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Play Sports for a Quieter Brain: Evidence From Division I Collegiate Athletes
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In: Sports Health (2019)
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Stability and Plasticity of Auditory Brainstem Function Across the Lifespan
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Bilingualism increases neural response consistency and attentional control: Evidence for sensory and cognitive coupling
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Neural processing of speech in children is influenced by bilingual experience
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Abstract:
Language experience fine-tunes how the auditory system processes sound. For example, bilinguals, relative to monolinguals, have more robust evoked responses to speech that manifest as stronger neural encoding of the fundamental frequency (F0) and greater across-trial consistency. However, it is unknown whether such enhancements increase with increasing second language experience. We predict that F0 amplitude and neural consistency scale with dual-language experience during childhood, such that more years of bilingual experience leads to more robust F0 encoding and greater neural consistency. To test this hypothesis, we recorded auditory brainstem responses to the synthesized syllables ‘ba’ and ‘ga’ in two groups of bilingual children who were matched for age at test (8.4+/−0.67 years) but differed in their age of second language acquisition. One group learned English and Spanish simultaneously from birth (n=13), while the second group learned the two languages sequentially (n=15), spending on average their first four years as monolingual Spanish speakers. We find that simultaneous bilinguals have a larger F0 response to ‘ba’ and ‘ga’ and a more consistent response to ‘ba’ compared to sequential bilinguals. We also demonstrate that these neural enhancements positively relate with years of bilingual experience. These findings support the notion that bilingualism enhances subcortical auditory processing.
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Keyword:
Article
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URL: http://www.ncbi.nlm.nih.gov/pubmed/25445377
https://doi.org/10.1016/j.neulet.2014.11.011
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4272867/
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The Impoverished Brain: Disparities in Maternal Education Affect the Neural Response to Sound
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Subcortical encoding of sound is enhanced in bilinguals and relates to executive function advantages
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Stimulus Rate and Subcortical Auditory Processing of Speech
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