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

作者全名："Zhou, Xiao-Qing; Zhang, Qing-Ling; Xi, Xin; Leng, Ming-Rong; Liu, Hao; Liu, Shu; Zhang, Ting; Yuan, Wei"

作者地址："[Zhou, Xiao-Qing; Zhang, Qing-Ling; Yuan, Wei] Chongqing Med Univ, Dept Otolaryngol, Chongqing, Peoples R China; [Zhou, Xiao-Qing; Zhang, Qing-Ling; Yuan, Wei] Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China; [Zhou, Xiao-Qing; Zhang, Qing-Ling; Yuan, Wei] Univ Chinese Acad Sci, Chongqing Sch, Chongqing, Peoples R China; [Zhou, Xiao-Qing; Zhang, Qing-Ling; Yuan, Wei] Chongqing Gen Hosp, Dept Otolaryngol, Chongqing, Peoples R China; [Xi, Xin] Chinese Peoples Liberat Army Gen Hosp, Dept Otolaryngol Head & Neck Surg, Beijing, Peoples R China; [Leng, Ming-Rong; Liu, Hao; Liu, Shu; Zhang, Ting] Chongqing Integrated Serv Ctr Disabled Persons, Chongqing, Peoples R China"

通信作者："Yuan, W (通讯作者)，Chongqing Med Univ, Dept Otolaryngol, Chongqing, Peoples R China.; Yuan, W (通讯作者)，Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China.; Yuan, W (通讯作者)，Univ Chinese Acad Sci, Chongqing Sch, Chongqing, Peoples R China.; Yuan, W (通讯作者)，Chongqing Gen Hosp, Dept Otolaryngol, Chongqing, Peoples R China."

来源：FRONTIERS IN NEUROSCIENCE

ESI学科分类：NEUROSCIENCE & BEHAVIOR

WOS号：WOS:001006540300001

JCR分区：Q2

影响因子：3.2

年份：2023

卷号：17

期号：　

开始页：　

结束页：　

文献类型：Article

关键词：cochlear implant; cortical activation; cross-modal reorganization; speech understanding; functional near-infrared spectroscopy

摘要："IntroductionCochlear 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. MethodsIn 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. ResultsThe 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. DiscussionIn 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."

基金机构："Chongqing Municipal Public Health Bureau, Chongqing People's Municipal Government [2022DBXM006]; National Natural Science Foundation of China [81873702]; Chongqing Science and Technology Commission [2022NSCQ-MSX2839, CSTB2022NSCQ-MSX0553]"

基金资助正文："Funding This work was funded by Chongqing Municipal Public Health Bureau, Chongqing People's Municipal Government (No. 2022DBXM006), National Natural Science Foundation of China (No. 81873702), and Chongqing Science and Technology Commission (Nos. 2022NSCQ-MSX2839 and CSTB2022NSCQ-MSX0553)."