中国听力语言康复科学杂志2026，Vol.24Issue(1)：29-34,39,7.DOI:10.3969/j.issn.1672-4933.2026.01.006
人工耳蜗植入者位置特异性相间间隙效应与竞争语境言语识别的相关性研究初探
A Preliminary Study to Investigate the Correlation Between Position-Specific Effect of Interphase Gap and Competing Acoustic Environments Speech Recognition in Cochlear Implant Receivers
摘要
Abstract
Objective This study aimed to investigate the position-specific correlation between peripheral auditory nerve function(evaluated via the interphase gap effect,IPG effect)and speech recognition performance in competing acoustic environments among cochlear implant(CI)users,with a focus on the differential contributions of neural functions across cochlear regions.Methods Thirteen unilateral Nurotron CS-20A(TM)CI users(aged 9-68 years),all with an implanted electrode length of 22 mm,were included,and the slopes of the amplitude growth functions(AGF)of the electrically evoked compound action potential(ECAP)were measured at four electrodes from the cochlea apex to the cochlea floor(E1:213 Hz,E7:945 Hz,E13:1920 Hz,and E19:3992 Hz)in the IPG=5 μs versus 30 μs condition,and the electrode-specific IPG was calculated.Speech tests included correct bisyllabic word/phrase recognition in quiet vs.steady state noise(+5dB SNR),and closed-set phrase recognition threshold(TMR)under competing masking of same-sex(male)vs.opposite-sex(female)voices.Results There were inter-individual and inter-electrode differences in the IPG effect(E1:18%,E7:51%,E13:56%,E19:28%;elicitation rates 61.5%-84.6%).The IPG effect in the E1(low-frequency region)was positively correlated with disyllabic word recognition rate in quiet/noise(r=0.555-0.723,P<0.05),and sentence recognition rate in noise(r=0.589,P=0.034),and negatively correlated with female voice masking recognition threshold(r=-0.637,P=0.019).Conclusion There is a clear location-specific association between the IPG effect and speech recognition performance,and low-frequency neural function in the cochleo-parietal region(E1)is a key biomarker of speech perception in noisy and competing contexts.The IPG effect can be used as a specific indicator for assessing the health of peripheral nerves.关键词
人工耳蜗植入/竞争语境/言语识别/相间间隙/电诱发复合动作电位Key words
Cochlear implant/Competing speech/Speech recognition/IPG/Electrically evoked compound action potential分类
医药卫生引用本文复制引用
宫梦芳,何倩,朱晓婷,盛小靓,康诗雨,刘济生,陶朵朵..人工耳蜗植入者位置特异性相间间隙效应与竞争语境言语识别的相关性研究初探[J].中国听力语言康复科学杂志,2026,24(1):29-34,39,7.基金项目
国家自然科学基金项目(82571311&82171159) （82571311&82171159）
江苏省卫健委重点项目(K2024079) （K2024079）
苏州市科技计划项目(SKY2023043) （SKY2023043）
苏州市基础研究试点项目(SSD2024025) （SSD2024025）
