A COMPARISON OF SPEECH-DISCRIMINATION WITH COCHLEAR IMPLANTS AND TACTILE AIDS
A COMPARISON OF SPEECH-DISCRIMINATION WITH COCHLEAR IMPLANTS AND TACTILE AIDS
复制标题
DOI：
10.1121/1.407477
复制
发表时间：
1993-10-01
影响因子：
2.4
通讯作者：
MIYAMOTO, RT
中科院分区：
文献类型：
--
作者：
CARNEY, AE;OSBERGER, MJ;MIYAMOTO, RT
本研究探讨重度听障儿童接受人工耳蜗植入或触觉辅助后的言语辨别模式。改变/不变的程序被用来评估这些儿童的言语歧视。测试了三组受试者：第一组使用3 M/House单通道人工耳蜗植入体;第二组使用Nucleus 22通道人工耳蜗植入体;第三组使用双通道Tactaid II +振动触觉辅助器。九个对比，评估歧视的超音段和音段语音功能。受试者提出的刺激试验中，刺激在试验过程中发生变化，或在刺激保持不变。记录命中、未命中、假警报和正确拒绝，并计算每个对比的个体受试者的d'值。结果表明，不同的模式的语言歧视提供了三个感觉假体设备。对于所有对比，尽管受试者使用该人工耳蜗植入体的持续时间较短，但Nucleus器械的平均辨别性能优于其他两种器械。此外，未观察到器械与语音对比之间的相互作用。对个体受试者性能的检查显示，每个器械组的性能分布从良好到较差。结果表明，改变/没有改变的程序是能够提供信息的言语知觉通过感觉假体设备，尽管存在的差异，在词汇和语言技能的科目。
This study investigates patterns of speech discrimination in profoundly hearing-impaired children who have received cochlear implants or tactile aids. The change/no change procedure was used to assess speech discrimination in these children. Three groups of subjects were tested: the first group used 3M/House single-channel cochlear implants; the second group used Nucleus 22-channel cochlear implants; and the third group used two-channel Tactaid II + vibrotactile aids. Nine contrasts were constructed that assessed discrimination of suprasegmental and segmental speech features. Subjects were presented with stimulus trials in which stimuli changed during the trial or in which stimuli remained the same. Hits, misses, false alarms, and correct rejections were tallied and d' values were calculated for individual subjects for each contrast. Results indicated that different patterns of speech discrimination are provided by the three sensory prosthetic devices. For all contrasts, mean discrimination performance with the Nucleus device was better than that observed for the other two devices, despite the shorter duration of subject experience with this cochlear implant. In addition, interactions between device and speech contrast were not observed. Examination of individual subject performance revealed that each device group had a distribution of good to poor performers. The results suggest that the change/no change procedure is able to provide information regarding speech perception through sensory prosthetic devices despite existing differences in vocabulary and language skills of subjects.