[语前聋人工耳蜗植入者的语调识别与电极辨别]
[Tone recognition and electrode discrimination in prelingually deafened cochlear-implant listeners].
作者信息
Wei Chao-gang, Cao Ke-li, Chen Xiao-wei, Jin Xin, Zheng Zhen-yu, Zeng Fan-gang
机构信息
Cochlear Implant Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China.
出版信息
Zhonghua Er Bi Yan Hou Ke Za Zhi. 2004 Feb;39(2):73-6.
OBJECTIVE
To investigate tone recognition and electrode discrimination in prelingually deafened children with the Nucleus device, and to develop guidelines for customized mapping in the implant users.
METHODS
Fourteen prelingually deafened children with cochlear implants participated in this study. Tone recognition was measured with a four-alternative, forced choice procedure from 25 consonant-vowel syllables, each of which had four tonal variations. Electrode discrimination was measured using a same-difference procedure on 7 pairs of electrodes covering the entire electrode array.
RESULTS
Tone recognition ranged from 35% to 99% correct with a mean of 62.8% and standard deviation of 14.7% in these users. Electrode discrimination had the mean threshold of 3.4 +/- 0.9, with the best performance from the middle electrodes (E 14 and E 17) at 2.6 and the followed performance at the most apical electrode (E 20).
CONCLUSION
The results showed significant individual differences from both tone recognition and electrode discrimination, but there is significant correlation between them.
目的
研究使用诺力尔装置的语前聋儿童的音调识别和电极辨别能力，并为植入用户制定定制映射指南。
方法
14名接受人工耳蜗植入的语前聋儿童参与了本研究。音调识别通过四选一强制选择程序，从25个辅音 - 元音音节中进行测量，每个音节有四种音调变化。电极辨别使用相同 - 差异程序，对覆盖整个电极阵列的7对电极进行测量。
结果
这些用户的音调识别正确率在35%至99%之间，平均为62.8%，标准差为14.7%。电极辨别平均阈值为3.4 +/- 0.9，中间电极（E14和E17）表现最佳，阈值为2.6，最顶端电极（E20）次之。
结论
结果显示音调识别和电极辨别均存在显著个体差异，但二者之间存在显著相关性。
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