Differences in neural encoding of speech in noise between cochlear implant users with and without preserved acoustic hearing

Hwan Shim; Subong Kim; Jean Hong; Youngmin Na; Jihwan Woo; Marlan Hansen; Bruce Gantz; Inyong Choi

doi:10.1016/j.heares.2022.108649

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Differences in neural encoding of speech in noise between cochlear implant users with and without preserved acoustic hearing

Journal article

Open access

Peer reviewed

Differences in neural encoding of speech in noise between cochlear implant users with and without preserved acoustic hearing

Hwan Shim, Subong Kim, Jean Hong, Youngmin Na, Jihwan Woo, Marlan Hansen, Bruce Gantz and Inyong Choi

Hearing research, Vol.427, pp.108649-108649

11/13/2022

DOI: 10.1016/j.heares.2022.108649

PMCID: PMC9842477

PMID: 36462377

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https://doi.org/10.1016/j.heares.2022.108649View

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Abstract

Cochlear implants (CIs) have evolved to combine residual acoustic hearing with electric hearing. It has been expected that CI users with residual acoustic hearing experience better speech-in-noise perception than CI-only listeners because preserved acoustic cues aid unmasking speech from background noise. This study sought neural substrate of better speech unmasking in CI users with preserved acoustic hearing compared to those with lower degree of acoustic hearing. Cortical evoked responses to speech in multi-talker babble noise were compared between 29 Hybrid (i.e., electric acoustic stimulation or EAS) and 29 electric-only CI users. The amplitude ratio of evoked responses to speech and noise, or internal SNR, was significantly larger in the CI users with EAS. This result indicates that CI users with better residual acoustic hearing exhibit enhanced unmasking of speech from background noise.

Details

Title: Subtitle: Differences in neural encoding of speech in noise between cochlear implant users with and without preserved acoustic hearing
Creators: Hwan Shim
Subong Kim - Montclair State University
Jean Hong
Youngmin Na
Jihwan Woo
Marlan Hansen
Bruce Gantz
Inyong Choi
Resource Type: Journal article
Publication Details: Hearing research, Vol.427, pp.108649-108649
DOI: 10.1016/j.heares.2022.108649
PMID: 36462377
PMCID: PMC9842477
NLM abbreviation: Hear Res
ISSN: 0378-5955
eISSN: 1878-5891
Grant note: DOI: 10.13039/100000005, name: DOD; DOI: 10.13039/100000055, name: NIDCD; DOI: 10.13039/100002595, name: American Otological Society Inc
Language: English
Date published: 11/13/2022
Academic Unit: Communication Sciences and Disorders; Molecular Physiology and Biophysics; Iowa Neuroscience Institute; Neurosurgery; Otolaryngology
Record Identifier: 9984321957902771

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