Contributions of electric and acoustic hearing to bimodal speech and music perception.
Contributions of electric and acoustic hearing to bimodal speech and music perception.
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DOI：
10.1371/journal.pone.0120279
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Fu QJ
中科院分区：
文献类型：
--
作者：
Crew JD;Galvin JJ 3rd;Landsberger DM;Fu QJ
人工耳蜗植入体（CI）用户在嘈杂的收听条件下难以理解语音和感知音乐。对侧耳中的辅助残余声学听力可以减轻这些限制。本研究探讨了电和声听觉对噪声和旋律音高感知中言语理解的贡献。仅使用CI、仅使用助听器（HA）以及两种器械一起（CI+HA）收集数据。对语音混叠中的简单句子自适应地测量了语音接收阈值。旋律轮廓识别（MCI）进行了测量，并没有掩蔽工具;掩蔽的基本频率是不同的重叠或不重叠的目标轮廓。结果表明，CI主要有助于双峰语音感知和HA主要有助于双峰旋律音高感知。一般而言，对于SRT，CI+HA性能相对于较好的单独耳朵（仅CI）略有改善，但对于MCI没有改善，一些受试者的双峰MCI性能相对于较好的单独耳朵（仅HA）有所下降。个人的表现是高度可变的，任何设备的双峰感知的贡献是受试者和任务依赖。结果表明，个性化映射的CI和HA可能会进一步改善双峰语音和音乐感知。
Cochlear implant (CI) users have difficulty understanding speech in noisy listening conditions and perceiving music. Aided residual acoustic hearing in the contralateral ear can mitigate these limitations. The present study examined contributions of electric and acoustic hearing to speech understanding in noise and melodic pitch perception. Data was collected with the CI only, the hearing aid (HA) only, and both devices together (CI+HA). Speech reception thresholds (SRTs) were adaptively measured for simple sentences in speech babble. Melodic contour identification (MCI) was measured with and without a masker instrument; the fundamental frequency of the masker was varied to be overlapping or non-overlapping with the target contour. Results showed that the CI contributes primarily to bimodal speech perception and that the HA contributes primarily to bimodal melodic pitch perception. In general, CI+HA performance was slightly improved relative to the better ear alone (CI-only) for SRTs but not for MCI, with some subjects experiencing a decrease in bimodal MCI performance relative to the better ear alone (HA-only). Individual performance was highly variable, and the contribution of either device to bimodal perception was both subject- and task-dependent. The results suggest that individualized mapping of CIs and HAs may further improve bimodal speech and music perception.
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影响因子：
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作者：
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通讯作者：
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DOI：
10.1177/000348941212101203
发表时间：
2012-12
期刊：
The Annals of otology, rhinology, and laryngology
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DOI：
10.1044/1092-4388(2010/10-0197
发表时间：
2011-06-01
影响因子：
2.6
作者：
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通讯作者：
Braida, Louis D.