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41
Training to Improve Hearing Speech in Noise: Biological Mechanisms
Song, Judy H.; Skoe, Erika; Banai, Karen. - : Oxford University Press, 2012
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42
Musicians have fine-tuned neural distinction of speech syllables
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43
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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44
Training to Improve Hearing Speech in Noise: Biological Mechanisms
Song, Judy H.; Skoe, Erika; Banai, Karen. - : Oxford University Press, 2012
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45
Subcortical encoding of sound is enhanced in bilinguals and relates to executive function advantages
Krizman, Jennifer; Marian, Viorica; Shook, Anthony. - : National Academy of Sciences, 2012
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46
Assistive listening devices drive neuroplasticity in children with dyslexia
Hornickel, Jane; Zecker, Steven G.; Bradlow, Ann R.. - : National Academy of Sciences, 2012
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47
Cross-phaseogram: Objective neural index of speech sound differentiation
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48
Training to Improve Hearing Speech in Noise: Biological Mechanisms
Song, Judy H.; Skoe, Erika; Banai, Karen. - : Oxford University Press, 2011
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49
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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50
Inferior colliculus contributions to phase encoding of stop consonants in an animal model
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51
Brainstem Correlates of Speech-in-Noise Perception in Children
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52
RAPID ACOUSTIC PROCESSING IN THE AUDITORY BRAINSTEM IS NOT RELATED TO CORTICAL ASYMMETRY FOR THE SYLLABLE RATE OF SPEECH
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53
Perception of Speech in Noise: Neural Correlates
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54
Stimulus Rate and Subcortical Auditory Processing of Speech
Krizman, Jennifer; Skoe, Erika; Kraus, Nina. - : S. Karger AG, 2010
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55
Auditory brainstem measures predict reading and speech-in-noise perception in school-aged children
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56
Emotion modulates early auditory response to speech
In: Journal of cognitive neuroscience. - Cambridge, Mass. : MIT Press Journals 21 (2009) 11, 2121-2128
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57
Reading and Subcortical Auditory Function
Banai, Karen; Hornickel, Jane; Skoe, Erika. - : Oxford University Press, 2009
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58
Reading and Subcortical Auditory Function
Banai, Karen; Hornickel, Jane; Skoe, Erika. - : Oxford University Press, 2009
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59
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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60
Context-dependent encoding in the human auditory brainstem relates to hearing speech in noise: Implications for developmental dyslexia
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