Relationship between objective measures of hearing discrimination elicited by non-linguistic stimuli and speech perception in adults

Abstract Some people using hearing aids have difficulty discriminating between sounds even though the sounds are audible. As such, cochlear implants may provide greater benefits for speech perception. One method to identify people with auditory discrimination deficits is to measure discrimination th...

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Main Authors: Hugo Sohier, Fabrice Bardy, Teresa Y. C. Ching
Format: Article
Language:English
Published: Nature Portfolio 2021-10-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-98950-5
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author Hugo Sohier
Fabrice Bardy
Teresa Y. C. Ching
author_facet Hugo Sohier
Fabrice Bardy
Teresa Y. C. Ching
author_sort Hugo Sohier
collection DOAJ
description Abstract Some people using hearing aids have difficulty discriminating between sounds even though the sounds are audible. As such, cochlear implants may provide greater benefits for speech perception. One method to identify people with auditory discrimination deficits is to measure discrimination thresholds using spectral ripple noise (SRN). Previous studies have shown that behavioral discrimination of SRN was associated with speech perception, and behavioral discrimination was also related to cortical responses to acoustic change or ACCs. We hypothesized that cortical ACCs could be directly related to speech perception. In this study, we investigated the relationship between subjective speech perception and objective ACC responses measured using SRNs. We tested 13 normal-hearing and 10 hearing-impaired adults using hearing aids. Our results showed that behavioral SRN discrimination was correlated with speech perception in quiet and in noise. Furthermore, cortical ACC responses to phase changes in the SRN were significantly correlated with speech perception. Audibility was a major predictor of discrimination and speech perception, but direct measures of auditory discrimination could contribute information about a listener’s sensitivity to acoustic cues that underpin speech perception. The findings lend support for potential application of measuring ACC responses to SRNs for identifying people who may benefit from cochlear implants.
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spelling doaj.art-422ef810a1ca41dcbb7a09549438cfd62022-12-21T21:34:27ZengNature PortfolioScientific Reports2045-23222021-10-0111111110.1038/s41598-021-98950-5Relationship between objective measures of hearing discrimination elicited by non-linguistic stimuli and speech perception in adultsHugo Sohier0Fabrice Bardy1Teresa Y. C. Ching2Faculté de Pharmacie, Université de MontpellierNational Acoustic LaboratoriesNational Acoustic LaboratoriesAbstract Some people using hearing aids have difficulty discriminating between sounds even though the sounds are audible. As such, cochlear implants may provide greater benefits for speech perception. One method to identify people with auditory discrimination deficits is to measure discrimination thresholds using spectral ripple noise (SRN). Previous studies have shown that behavioral discrimination of SRN was associated with speech perception, and behavioral discrimination was also related to cortical responses to acoustic change or ACCs. We hypothesized that cortical ACCs could be directly related to speech perception. In this study, we investigated the relationship between subjective speech perception and objective ACC responses measured using SRNs. We tested 13 normal-hearing and 10 hearing-impaired adults using hearing aids. Our results showed that behavioral SRN discrimination was correlated with speech perception in quiet and in noise. Furthermore, cortical ACC responses to phase changes in the SRN were significantly correlated with speech perception. Audibility was a major predictor of discrimination and speech perception, but direct measures of auditory discrimination could contribute information about a listener’s sensitivity to acoustic cues that underpin speech perception. The findings lend support for potential application of measuring ACC responses to SRNs for identifying people who may benefit from cochlear implants.https://doi.org/10.1038/s41598-021-98950-5
spellingShingle Hugo Sohier
Fabrice Bardy
Teresa Y. C. Ching
Relationship between objective measures of hearing discrimination elicited by non-linguistic stimuli and speech perception in adults
Scientific Reports
title Relationship between objective measures of hearing discrimination elicited by non-linguistic stimuli and speech perception in adults
title_full Relationship between objective measures of hearing discrimination elicited by non-linguistic stimuli and speech perception in adults
title_fullStr Relationship between objective measures of hearing discrimination elicited by non-linguistic stimuli and speech perception in adults
title_full_unstemmed Relationship between objective measures of hearing discrimination elicited by non-linguistic stimuli and speech perception in adults
title_short Relationship between objective measures of hearing discrimination elicited by non-linguistic stimuli and speech perception in adults
title_sort relationship between objective measures of hearing discrimination elicited by non linguistic stimuli and speech perception in adults
url https://doi.org/10.1038/s41598-021-98950-5
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