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Musical Experience, Sensorineural Auditory Processing, and Reading Subskills in Adults
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Stability and Plasticity of Auditory Brainstem Function Across the Lifespan
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An acoustic gap between the NICU and womb: a potential risk for compromised neuroplasticity of the auditory system in preterm infants
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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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An acoustic gap between the NICU and womb: a potential risk for compromised neuroplasticity of the auditory system in preterm infants
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Longitudinal Effects of Group Music Instruction on Literacy Skills in Low-Income Children
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The Impoverished Brain: Disparities in Maternal Education Affect the Neural Response to Sound
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Training to Improve Hearing Speech in Noise: Biological Mechanisms
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Abstract:
We investigated training-related improvements in listening in noise and the biological mechanisms mediating these improvements. Training-related malleability was examined using a program that incorporates cognitively based listening exercises to improve speech-in-noise perception. Before and after training, auditory brainstem responses to a speech syllable were recorded in quiet and multitalker noise from adults who ranged in their speech-in-noise perceptual ability. Controls did not undergo training but were tested at intervals equivalent to the trained subjects. Trained subjects exhibited significant improvements in speech-in-noise perception that were retained 6 months later. Subcortical responses in noise demonstrated training-related enhancements in the encoding of pitch-related cues (the fundamental frequency and the second harmonic), particularly for the time-varying portion of the syllable that is most vulnerable to perceptual disruption (the formant transition region). Subjects with the largest strength of pitch encoding at pretest showed the greatest perceptual improvement. Controls exhibited neither neurophysiological nor perceptual changes. We provide the first demonstration that short-term training can improve the neural representation of cues important for speech-in-noise perception. These results implicate and delineate biological mechanisms contributing to learning success, and they provide a conceptual advance to our understanding of the kind of training experiences that can influence sensory processing in adulthood.
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Articles
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URL: https://doi.org/10.1093/cercor/bhr196 http://cercor.oxfordjournals.org/cgi/content/short/22/5/1180
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13 |
Training to Improve Hearing Speech in Noise: Biological Mechanisms
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Subcortical encoding of sound is enhanced in bilinguals and relates to executive function advantages
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Cross-phaseogram: Objective neural index of speech sound differentiation
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Training to Improve Hearing Speech in Noise: Biological Mechanisms
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Brainstem Correlates of Speech-in-Noise Perception in Children
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Stimulus Rate and Subcortical Auditory Processing of Speech
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