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Cortical responses correlate with speech performance in pre-lingually deaf cochlear implant children

INTRODUCTION: Cochlear implantation is currently the most successful intervention for severe-to-profound sensorineural hearing loss, particularly in deaf infants and children. Nonetheless, there remains a significant degree of variability in the outcomes of CI post-implantation. The purpose of this...

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Autores principales: Zhou, Xiao-Qing, Zhang, Qing-Ling, Xi, Xin, Leng, Ming-Rong, Liu, Hao, Liu, Shu, Zhang, Ting, Yuan, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10272438/
https://www.ncbi.nlm.nih.gov/pubmed/37332858
http://dx.doi.org/10.3389/fnins.2023.1126813
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author Zhou, Xiao-Qing
Zhang, Qing-Ling
Xi, Xin
Leng, Ming-Rong
Liu, Hao
Liu, Shu
Zhang, Ting
Yuan, Wei
author_facet Zhou, Xiao-Qing
Zhang, Qing-Ling
Xi, Xin
Leng, Ming-Rong
Liu, Hao
Liu, Shu
Zhang, Ting
Yuan, Wei
author_sort Zhou, Xiao-Qing
collection PubMed
description INTRODUCTION: Cochlear implantation is currently the most successful intervention for severe-to-profound sensorineural hearing loss, particularly in deaf infants and children. Nonetheless, there remains a significant degree of variability in the outcomes of CI post-implantation. The purpose of this study was to understand the cortical correlates of the variability in speech outcomes with a cochlear implant in pre-lingually deaf children using functional near-infrared spectroscopy (fNIRS), an emerging brain-imaging technique. METHODS: In this experiment, cortical activities when processing visual speech and two levels of auditory speech, including auditory speech in quiet and in noise with signal-to-noise ratios of 10 dB, were examined in 38 CI recipients with pre-lingual deafness and 36 normally hearing children whose age and sex matched CI users. The HOPE corpus (a corpus of Mandarin sentences) was used to generate speech stimuli. The regions of interest (ROIs) for the fNIRS measurements were fronto-temporal-parietal networks involved in language processing, including bilateral superior temporal gyrus, left inferior frontal gyrus, and bilateral inferior parietal lobes. RESULTS: The fNIRS results confirmed and extended findings previously reported in the neuroimaging literature. Firstly, cortical responses of superior temporal gyrus to both auditory and visual speech in CI users were directly correlated to auditory speech perception scores, with the strongest positive association between the levels of cross-modal reorganization and CI outcome. Secondly, compared to NH controls, CI users, particularly those with good speech perception, showed larger cortical activation in the left inferior frontal gyrus in response to all speech stimuli used in the experiment. DISCUSSION: In conclusion, cross-modal activation to visual speech in the auditory cortex of pre-lingually deaf CI children may be at least one of the neural bases of highly variable CI performance due to its beneficial effects for speech understanding, thus supporting the prediction and assessment of CI outcomes in clinic. Additionally, cortical activation of the left inferior frontal gyrus may be a cortical marker for effortful listening.
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spelling pubmed-102724382023-06-17 Cortical responses correlate with speech performance in pre-lingually deaf cochlear implant children Zhou, Xiao-Qing Zhang, Qing-Ling Xi, Xin Leng, Ming-Rong Liu, Hao Liu, Shu Zhang, Ting Yuan, Wei Front Neurosci Neuroscience INTRODUCTION: Cochlear implantation is currently the most successful intervention for severe-to-profound sensorineural hearing loss, particularly in deaf infants and children. Nonetheless, there remains a significant degree of variability in the outcomes of CI post-implantation. The purpose of this study was to understand the cortical correlates of the variability in speech outcomes with a cochlear implant in pre-lingually deaf children using functional near-infrared spectroscopy (fNIRS), an emerging brain-imaging technique. METHODS: In this experiment, cortical activities when processing visual speech and two levels of auditory speech, including auditory speech in quiet and in noise with signal-to-noise ratios of 10 dB, were examined in 38 CI recipients with pre-lingual deafness and 36 normally hearing children whose age and sex matched CI users. The HOPE corpus (a corpus of Mandarin sentences) was used to generate speech stimuli. The regions of interest (ROIs) for the fNIRS measurements were fronto-temporal-parietal networks involved in language processing, including bilateral superior temporal gyrus, left inferior frontal gyrus, and bilateral inferior parietal lobes. RESULTS: The fNIRS results confirmed and extended findings previously reported in the neuroimaging literature. Firstly, cortical responses of superior temporal gyrus to both auditory and visual speech in CI users were directly correlated to auditory speech perception scores, with the strongest positive association between the levels of cross-modal reorganization and CI outcome. Secondly, compared to NH controls, CI users, particularly those with good speech perception, showed larger cortical activation in the left inferior frontal gyrus in response to all speech stimuli used in the experiment. DISCUSSION: In conclusion, cross-modal activation to visual speech in the auditory cortex of pre-lingually deaf CI children may be at least one of the neural bases of highly variable CI performance due to its beneficial effects for speech understanding, thus supporting the prediction and assessment of CI outcomes in clinic. Additionally, cortical activation of the left inferior frontal gyrus may be a cortical marker for effortful listening. Frontiers Media S.A. 2023-06-02 /pmc/articles/PMC10272438/ /pubmed/37332858 http://dx.doi.org/10.3389/fnins.2023.1126813 Text en Copyright © 2023 Zhou, Zhang, Xi, Leng, Liu, Liu, Zhang and Yuan. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Zhou, Xiao-Qing
Zhang, Qing-Ling
Xi, Xin
Leng, Ming-Rong
Liu, Hao
Liu, Shu
Zhang, Ting
Yuan, Wei
Cortical responses correlate with speech performance in pre-lingually deaf cochlear implant children
title Cortical responses correlate with speech performance in pre-lingually deaf cochlear implant children
title_full Cortical responses correlate with speech performance in pre-lingually deaf cochlear implant children
title_fullStr Cortical responses correlate with speech performance in pre-lingually deaf cochlear implant children
title_full_unstemmed Cortical responses correlate with speech performance in pre-lingually deaf cochlear implant children
title_short Cortical responses correlate with speech performance in pre-lingually deaf cochlear implant children
title_sort cortical responses correlate with speech performance in pre-lingually deaf cochlear implant children
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10272438/
https://www.ncbi.nlm.nih.gov/pubmed/37332858
http://dx.doi.org/10.3389/fnins.2023.1126813
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