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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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The Impoverished Brain: Disparities in Maternal Education Affect the Neural Response to Sound
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Abstract:
Despite the prevalence of poverty worldwide, little is known about how early socioeconomic adversity affects auditory brain function. Socioeconomically disadvantaged children are underexposed to linguistically and cognitively stimulating environments and overexposed to environmental toxins, including noise pollution. This kind of sensory impoverishment, we theorize, has extensive repercussions on how the brain processes sound. To characterize how this impoverishment affects auditory brain function, we compared two groups of normal-hearing human adolescents who attended the same schools and who were matched in age, sex, and ethnicity, but differed in their maternal education level, a correlate of socioeconomic status (SES). In addition to lower literacy levels and cognitive abilities, adolescents from lower maternal education backgrounds were found to have noisier neural activity than their classmates, as reflected by greater activity in the absence of auditory stimulation. Additionally, in the lower maternal education group, the neural response to speech was more erratic over repeated stimulation, with lower fidelity to the input signal. These weaker, more variable, and noisier responses are suggestive of an inefficient auditory system. By studying SES within a neuroscientific framework, we have the potential to expand our understanding of how experience molds the brain, in addition to informing intervention research aimed at closing the achievement gap between high-SES and low-SES children.
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Keyword:
Articles
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URL: http://www.ncbi.nlm.nih.gov/pubmed/24174656 https://doi.org/10.1523/JNEUROSCI.2102-13.2013 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6618371/
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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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