Speech understanding by cochlear-implant patients with different left- and right-ear electrode arrays.
Speech understanding by cochlear-implant patients with different left- and right-ear electrode arrays.
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使用不同左耳和右耳电极阵列的人工耳蜗患者的言语理解。
DOI：
10.1097/01.aud.0000120367.70123.9a
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发表时间：
2004
期刊：
影响因子：
3.7
通讯作者：
Dahlstrom,Lisa
中科院分区：
文献类型：
--
作者：
Dorman,MichaelF;Dahlstrom,Lisa
电极-音高排序以及单耳和双耳语音感知评分由两名患者获得，他们分别在一只耳朵上安装了Med - CIS-Link处理器和Ineraid电极阵列，在另一只耳朵上安装了Clarion处理器和Hi-Focus电极阵列。电极排列任务的结果表明，来自Hi-Focus电极的电流比来自Ineraid阵列的电流延伸得更根尖，即两个最根尖的Hi-Focus电极的音高排名低于最根尖的Ineraid电极。由于这一点以及两个阵列中活性电极数量的不同，很可能两个耳蜗在信息处理的更中心阶段对同一信号呈现不同的表征。尽管如此，当两个植入物同时激活时，两名患者的得分都比一次激活一个植入物时高。
Electrode-pitch rankings and monaural and binaural speech perception scores were obtained from two patients fit with a Med El CIS-Link processor and Ineraid electrode array in one ear and a Clarion processor and Hi-Focus electrode array in the other ear. The results of the electrode-ranking task indicated that current from the Hi-Focus electrodes extended more apically than current from the Ineraid array, ie, the two most apical Hi-Focus electrodes were ranked lower in pitch than the most apical Ineraid electrode. Because of this and because of the different number of active electrodes in the two arrays, it is likely that the two cochleae presented different representations of the same signal to more central stages of information processing. In spite of this, both patients achieved better scores when both implants were activated than when the implants were activated one at a time.