Qi Beier, Liu Bo, Dong Ruijuan, Krenmayr Andreas, Chen Xueqing, Wang Shuo
Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Otolaryngology, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100005, China.
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Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2014 Apr;49(4):294-9.
To assess the contribution of the temporal fine structure cues on speech recognition, especially tone perception of cochlear implant users whose native language is Mandarin Chinese.
Twelve Mandarin speaking users of the MED-EL COMBI 40+ cochlear implants with the standard COMBI 40+ electrode array participated in the study. The subjects were followed up and studied using the longitudinal method for six weeks to compare the difference in speech identification results between fine structure processing (FSP) and continuous interleaved sampler (CIS). The test battery comprised two objective speech tests, including tone identification in quiet as well as a sentence recognition task in quiet and noise.
The scores of acute speech test: after replacing FSP strategy, the acute tone test results were similar to that of daily used CIS strategy(male version t = 0.791, P = 0.446;female version t = 0.679, P = 0.511), but the scores of MHINT were decreased significantly (t = -4.365, P = 0.001). The scores of long-lasting speech test were as follows the scores of tone identification test were sharply increased after subjects used the new coding strategy for six weeks continuously(male version t = 3.023, P = 0.018;female version t = 3.883, P = 0.003) and the MHIN results were similar to that of daily used CIS strategy(t = 1.475, P = 0.173).
The extraction of temporal fine structure cues supplemented in speech processing strategy of cochlear implant benefits the improvements in tone perception and the understanding of speech in cochlear implant recipients, which can further promotes their quality of life.
评估时间精细结构线索对言语识别的贡献，尤其是对母语为汉语普通话的人工耳蜗使用者的声调感知的贡献。
12名使用MED-EL COMBI 40+人工耳蜗及标准COMBI 40+电极阵列的汉语使用者参与了本研究。采用纵向研究方法对受试者进行为期六周的随访，比较精细结构处理（FSP）和连续交错采样（CIS）之间言语识别结果的差异。测试组合包括两项客观言语测试，即在安静环境下的声调识别以及在安静和噪声环境下的句子识别任务。
急性言语测试得分：更换FSP策略后，急性声调测试结果与日常使用的CIS策略相似（男性版本t = 0.791，P = 0.446；女性版本t = 0.679，P = 0.511），但MHINT得分显著降低（t = -4.365，P = 0.001）。长期言语测试得分如下：受试者连续六周使用新编码策略后，声调识别测试得分急剧增加（男性版本t = 3.023，P = 0.018；女性版本t = 3.883，P = 0.003），且MHIN结果与日常使用的CIS策略相似（t = 1.475，P = 0.173）。
在人工耳蜗言语处理策略中补充时间精细结构线索的提取，有利于改善人工耳蜗植入者的声调感知和言语理解，进而提高他们的生活质量。
