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1
Development of subcortical speech representation in human infants
Anderson, Samira; Parbery-Clark, Alexandra; White-Schwoch, Travis. - : Acoustical Society of America, 2015
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2
Musicians' Enhanced Neural Differentiation of Speech Sounds Arises Early in Life: Developmental Evidence from Ages 3 to 30
Strait, Dana L.; O'Connell, Samantha; Parbery-Clark, Alexandra. - : Oxford University Press, 2014
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3
Musicians' Enhanced Neural Differentiation of Speech Sounds Arises Early in Life: Developmental Evidence from Ages 3 to 30
Strait, Dana L.; O'Connell, Samantha; Parbery-Clark, Alexandra. - : Oxford University Press, 2013
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4
Biological impact of preschool music classes on processing speech in noise
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5
Effects of hearing loss on the subcortical representation of speech cues
Anderson, Samira; Parbery-Clark, Alexandra; White-Schwoch, Travis. - : Acoustical Society of America, 2013
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6
Musical training during early childhood enhances the neural encoding of speech in noise
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 123 (2012) 3, 191-201
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7
Musicians have fine-tuned neural distinction of speech syllables
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8
Aging affects neural precision of speech encoding
Abstract: Older adults frequently report they can hear what is said but cannot understand the meaning, especially in noise. This difficulty may arise from the inability to process rapidly changing elements of speech. Aging is accompanied by a general slowing of neural processing and decreased neural inhibition, both of which likely interfere with temporal processing in auditory and other sensory domains. Age-related reductions in inhibitory neurotransmitter levels and delayed neural recovery can contribute to decreases in the auditory system’s temporal precision. Decreased precision may lead to neural timing delays, reductions in neural response magnitude, and a disadvantage in processing the rapid acoustic changes in speech. The auditory brainstem response (ABR), a scalp-recorded electrical potential, is known for its ability to capture precise neural synchrony within subcortical auditory nuclei; therefore, we hypothesized that a loss of temporal precision results in subcortical timing delays and decreases in response consistency and magnitude. To assess this hypothesis, we recorded ABRs to the speech syllable /da/ in normal hearing younger (ages 18 to 30) and older adult humans (60 to 67). Older adults had delayed ABRs, especially in response to the rapidly changing formant transition, and greater response variability. We also found that older adults had decreased phase locking and smaller response magnitudes than younger adults. Taken together, our results support the theory that older adults have a loss of temporal precision in subcortical encoding of sound, which may account, at least in part, for their difficulties with speech perception.
Keyword: Article
URL: https://doi.org/10.1523/JNEUROSCI.2176-12.2012
http://www.ncbi.nlm.nih.gov/pubmed/23055485
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3488287
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9
Musical Experience and the Aging Auditory System: Implications for Cognitive Abilities and Hearing Speech in Noise
Parbery-Clark, Alexandra; Strait, Dana L.; Anderson, Samira. - : Public Library of Science, 2011
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10
Musical Experience Limits the Degradative Effects of Background Noise on the Neural Processing of Sound
Parbery-Clark, Alexandra; Skoe, Erika; Kraus, Nina. - : Society for Neuroscience, 2009
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