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1
Peripheral deficits and phase-locking declines in aging adults
In: Hear Res (2021)
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2
INFLUENCE OF SUPPORTIVE CONTEXT AND STIMULUS VARIABILITY ON RAPID ADAPTATION TO NON-NATIVE SPEECH
Bieber, Rebecca. - 2021
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3
Effects of Age, Cognition, and Neural Encoding on the Perception of Temporal Speech Cues ...
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4
Mutual information analysis of neural representations of speech in noise in the aging midbrain
In: J Neurophysiol (2019)
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5
Effects of Age, Cognition, and Neural Encoding on the Perception of Temporal Speech Cues
Abstract: Partial funding for Open Access provided by the UMD Libraries' Open Access Publishing Fund. ; Older adults commonly report difficulty understanding speech, particularly in adverse listening environments. These communication difficulties may exist in the absence of peripheral hearing loss. Older adults, both with normal hearing and with hearing loss, demonstrate temporal processing deficits that affect speech perception. The purpose of the present study is to investigate aging, cognition, and neural processing factors that may lead to deficits on perceptual tasks that rely on phoneme identification based on a temporal cue – vowel duration. A better understanding of the neural and cognitive impairments underlying temporal processing deficits could lead to more focused aural rehabilitation for improved speech understanding for older adults. This investigation was conducted in younger (YNH) and older normal-hearing (ONH) participants who completed three measures of cognitive functioning known to decline with age: working memory, processing speed, and inhibitory control. To evaluate perceptual and neural processing of auditory temporal contrasts, identification functions for the contrasting word-pair WHEAT and WEED were obtained on a nine-step continuum of vowel duration, and frequency-following responses (FFRs) and cortical auditory-evoked potentials (CAEPs) were recorded to the two endpoints of the continuum. Multiple linear regression analyses were conducted to determine the cognitive, peripheral, and/or central mechanisms that may contribute to perceptual performance. YNH participants demonstrated higher cognitive functioning on all three measures compared to ONH participants. The slope of the identification function was steeper in YNH than in ONH participants, suggesting a clearer distinction between the contrasting words in the YNH participants. FFRs revealed better response waveform morphology and more robust phase-locking in YNH compared to ONH participants. ONH participants also exhibited earlier latencies for CAEP components compared to the YNH participants. Linear regression analyses revealed that cortical processing significantly contributed to the variance in perceptual performance in the WHEAT/WEED identification functions. These results suggest that reduced neural precision contributes to age-related speech perception difficulties that arise from temporal processing deficits.
URL: http://hdl.handle.net/1903/26026
https://doi.org/10.13016/98rc-j8bo
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6
Effects of Amplification on Neural Phase Locking, Amplitude, and Latency to a Speech Syllable
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7
Short-term learning and memory:training and perceptual learning
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8
An Exploration of Auditory Brainstem Encoding of Stop Consonants in Infants and Implications for Language Outcomes
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9
Electrophysiologic Assessment of Auditory Training Benefits in Older Adults
Anderson, Samira; Jenkins, Kimberly. - : Thieme Medical Publishers, 2015
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10
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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11
Stability and Plasticity of Auditory Brainstem Function Across the Lifespan
Skoe, Erika; Krizman, Jennifer; Anderson, Samira. - : Oxford University Press, 2015
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12
Training changes processing of speech cues in older adults with hearing loss
Anderson, Samira; White-Schwoch, Travis; Choi, Hee Jae. - : Frontiers Media S.A., 2013
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13
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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14
Aging affects neural precision of speech encoding
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15
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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16
Brainstem Correlates of Speech-in-Noise Perception in Children
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