Patients utilizing a hearing aid and a cochlear implant: Speech perception and localization
Patients utilizing a hearing aid and a cochlear implant: Speech perception and localization
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DOI：
10.1097/00003446-200204000-00003
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发表时间：
2002-04-01
期刊：
影响因子：
3.7
通讯作者：
Noble, W
中科院分区：
文献类型：
--
作者：
Tyler, RS;Parkinson, AJ;Noble, W
目的：本初步研究的目的是记录使用一只耳朵植入人工耳蜗和另一只耳朵使用助听器的患者的语言感知和定位能力。设计：我们调查了一组人工耳蜗患者，询问他们是否在未植入的耳朵上使用助听器。前三名患者接受了单词和句子识别以及定位任务的测试。在安静和噪音条件下，言语刺激从正面呈现。在后一种情况下，噪音要么来自前方，要么来自右侧，要么来自左侧。定位测试中，噪音爆发出现在左右45度的位置。此外，我们还询问了患者整合两种设备信息的能力。结果：安静环境下的言语感知测试显示，三名患者中只有一名在单词方面有双耳优势，而在句子方面没有优势。当语音和噪音都在患者面前时，两名患者同时使用两种设备比单独使用一种设备表现更好。当语音在前面，助听器一侧有噪音时，没有看到双耳优势，但当人工耳蜗一侧有噪音时，一名患者表现出双耳优势。两名患者的定位能力都得到了改善。第三例患者仅使用种植体定位能力高于正常水平。结论：单耳人工耳蜗和双耳助听器可提供双耳优势。没有明显双耳优势的患者单独使用助听器的表现最差。每只耳朵的绝对和相对表现水平可能会影响双耳融合的潜力。
Objective: The purpose of this pilot study was to document speech perception and localization abilities in patients who use a cochlear implant in one ear and a hearing aid in the other ear.Design: We surveyed a group of Ill cochlear implant patients and asked them whether they used a hearing aid on their unimplanted ear. The first three patients who were available were tested on word and sentence recognition and localization tasks. Speech stimuli were presented from the front in quiet and in noise. In the latter conditions, noise was either from the front, the right, or the left. Localization was tested with noise bursts presented at 45degrees from the right or left. In addition we asked the patients about their abilities to integrate the information from both devices.Results: Speech perception tests in quiet showed a binaural advantage for only one of the three patients for words and none for sentences. With speech and noise both in front of the patient, two patients performed better with both devices than with either device alone. With speech in front and noise on the hearing aid side, no binaural advantage was seen, but with noise on the cochlear implant side, one patient showed a binaural advantage. Localization ability improved with both devices for two patients. The third patient had above-chance localization ability with his implant alone.Conclusions: A cochlear implant in one ear and a hearing aid in the other ear can provide binaural advantages. The patient who did not show a clear binaural advantage had the poorest hearing aid alone performance. The absolute and relative levels of performance at each ear are likely to influence the potential for binaural integration.