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Age-related deficits in dip-listening evident for isolated sentences but not for spoken stories
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In: Sci Rep (2022)
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How Long Does It Take for a Voice to Become Familiar? Speech Intelligibility and Voice Recognition Are Differentially Sensitive to Voice Training
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In: Communication Sciences and Disorders Publications (2021)
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Absorption and Enjoyment During Listening to Acoustically Masked Stories
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In: Trends Hear (2020)
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Absorption and Enjoyment During Listening to Acoustically Masked Stories
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In: Brain and Mind Institute Researchers' Publications (2020)
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Pupil Dilation Is Sensitive to Semantic Ambiguity and Acoustic Degradation
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In: Brain and Mind Institute Researchers' Publications (2020)
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Speech Spoken by Familiar People Is More Resistant to Interference by Linguistically Similar Speech
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In: Brain and Mind Institute Researchers' Publications (2020)
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Using spatial release from masking to estimate the magnitude of the familiar-voice intelligibility benefit
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In: Brain and Mind Institute Researchers' Publications (2019)
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The Benefit to Speech Intelligibility of Hearing a Familiar Voice
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In: Brain and Mind Institute Researchers' Publications (2019)
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Neural signatures of temporal regularity processing in sounds differ between younger and older adults
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In: Brain and Mind Institute Researchers' Publications (2019)
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The effects of aging on neural signatures of temporal regularity processing in sounds
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In: Brain and Mind Institute Researchers' Publications (2019)
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Semantic context improves speech intelligibility and reduces listening effort for listeners with hearing impairment
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In: Communication Sciences and Disorders Publications (2018)
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Familiar Voices Are More Intelligible, Even if They Are Not Recognized as Familiar
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In: Brain and Mind Institute Researchers' Publications (2018)
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Generalization of perceptual learning of degraded speech across talkers
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In: Brain and Mind Institute Researchers' Publications (2017)
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Cognitive and Visual Speech Contributions to Speech Perception in Challenging Listening Conditions
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Abstract:
Speech perception routinely takes place in noisy or degraded listening environments, leading to ambiguity in the identity of the speech token. Here, I present one review paper and two experimental papers that highlight cognitive and visual speech contributions to the listening process, particularly in challenging listening environments. First, I survey the literature linking audiometric age-related hearing loss and cognitive decline and review the four proposed causal mechanisms underlying this link. I argue that future research in this area requires greater consideration of the functional overlap between hearing and cognition. I also present an alternative framework for understanding causal relationships between age-related declines in hearing and cognition, with emphasis on the interconnected nature of hearing and cognition and likely contributions from multiple causal mechanisms. I also provide a number of testable hypotheses to examine how impairments in one domain may affect the other. In my first experimental study, I examine the direct contribution of working memory (through a cognitive training manipulation) on speech in noise comprehension in older adults. My results challenge the efficacy of cognitive training more generally, and also provide support for the contribution of sentence context in reducing working memory load. My findings also challenge the ubiquitous use of the Reading Span test as a pure test of working memory. In a second experimental (fMRI) study, I examine the role of attention in audiovisual speech integration, particularly when the acoustic signal is degraded. I demonstrate that attentional processes support audiovisual speech integration in the middle and superior temporal gyri, as well as the fusiform gyrus. My results also suggest that the superior temporal sulcus is sensitive to intelligibility enhancement, regardless of how this benefit is obtained (i.e., whether it is obtained through visual speech information or speech clarity). In addition, I also demonstrate that both the cingulo-opercular network and motor speech areas are recruited in difficult listening conditions. Taken together, these findings augment our understanding of cognitive contributions to the listening process and demonstrate that memory, working memory, and executive control networks may flexibly be recruited in order to meet listening demands in challenging environments. ; PhD
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Keyword:
Age-related hearing loss; Attention; Audiology; Audiometry; Audiovisual speech integration; Auditory aging; Cingulo-opercular network; Cognition; Cognitive aging; Cognitive hearing science; Cognitive training; Degraded speech; Fusiform face area; Hearing; Hearing impairment; Noise-vocoded speech; Reading span test; Speech communication; Speech in noise; Speech perception; Superior temporal gyrus; Working memory
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URL: http://hdl.handle.net/1974/15239
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Effects of a consistent target or masker voice on target speech intelligibility in two- and three-talker mixtures.
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In: Brain and Mind Institute Researchers' Publications (2016)
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Working Memory Training and Speech in Noise Comprehension in Older Adults.
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In: Brain and Mind Institute Researchers' Publications (2016)
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The eye as a window to the listening brain: neural correlates of pupil size as a measure of cognitive listening load.
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In: Brain and Mind Institute Researchers' Publications (2014)
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Multi-voxel Patterns Reveal Functionally Differentiated Networks Underlying Auditory Feedback Processing of Speech
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