BKB-SIN and ANL Predict Perceived Communication Ability in Cochlear Implant Users
BKB-SIN and ANL Predict Perceived Communication Ability in Cochlear Implant Users
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DOI：
10.1097/aud.0b013e3181a16379
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发表时间：
2009-08-01
期刊：
影响因子：
3.7
通讯作者：
Krause, Jean C.
中科院分区：
文献类型：
--
作者：
Donaldson, Gail S.;Chisolm, Theresa H.;Krause, Jean C.
目的：人工耳蜗（CI）用户通常报告说，语音识别在存在背景噪声的情况下变得更加困难。这种看法是一致的语音识别的客观措施表明，CI用户需要更有利的信噪比比正常听力（NH）的听众，以实现等效的语音识别。然而，最近对助听器使用者的研究表明，噪音耐受性或“在噪音中倾听的意愿”也可能影响感知的沟通能力。因此，本研究的目的是评估在多大程度上语音识别在噪音和噪音耐受性预测感知沟通能力的成年CI用户。设计：对20名成年CI使用者进行了噪声中语音识别的客观测试（Bamford-Kowal-Bench Sentences in Noise [BKB-SIN] test）和噪声耐受性测量（可接受的噪音水平[ANL]测试）并完成沟通困难的自我报告测量（助听器益处简要概况[APHAB]）。评估了BKB-SIN评分、ANL评分和辅助APHAB评分之间的关系，这些评分包括沟通的容易程度、背景噪声、混响和全球尺度。此外，BKB-SIN分数和ANL分数的Cl用户进行了比较，分数为控制组的23 NH listeners.Results：CI用户表现出显着较差的BKB-SIN分数比NH听众，正如预期的那样，但是，他们的ANL分数是相似的NH听众。BKB-SIN评分和ANL评分之间没有系统相关性。每项措施占三分之一以上的方差在CI用户的辅助APHAB全球scores;加在一起，这两个措施占72%的方差。结论：语音识别噪声和噪声耐受性与CI用户的自我感知的沟通能力。这两项措施似乎反映了不同的因素，影响个人的沟通经验，因此，两者都可以提供有用的临床信息。建立BKB-SIN评分和ANL评分的正式标准，预测过度的沟通困难，可能有助于确定CI用户谁可以受益于额外的听力康复。
Objective: Cochlear implant (CI) users typically report that speech recognition becomes substantially more difficult in the presence of background noise. This perception is consistent with objective measures of speech recognition showing that Cl users require more favorable signal-to-noise ratios than normal-hearing (NH) listeners to achieve equivalent speech recognition. However, recent research in hearing aid users suggests that noise tolerance or the "willingness to listen in noise" may also influence perceived communication ability. Therefore, the purpose of this study was to evaluate the extent to which speech recognition in noise and noise tolerance predict perceived communication ability among adult CI users.Design: Twenty adult Cl users were evaluated on an objective test of speech recognition in noise (Bamford-Kowal-Bench Sentences in Noise [BKB-SIN] test) and a measure of noise tolerance (Acceptable Noise Level [ANL] test) and completed a self-report measure of communication difficulty (Abbreviated Profile of Hearing Aid Benefit [APHAB]). Relationships between BKB-SIN scores, ANL scores, and aided APHAB scores for the ease of communication, background noise, reverberation, and Global scales were assessed. In addition, BKB-SIN scores and ANL scores for the Cl users were compared with scores for a control group of 23 NH listeners.Results: CI users demonstrated substantially poorer BKB-SIN scores than NH listeners, as expected; however, their ANL scores were similar to those for NH listeners. BKB-SIN scores and ANL scores were not systematically related to one another. Each measure accounted for more than one third of the variance in Cl users' aided APHAB Global scores; together, the two measures accounted for 72% of that variance.Conclusions: Both speech recognition in noise and noise tolerance are strongly associated with Cl users' self-perceived communication ability. The two measures seem to reflect different factors that influence an individual's communication experience; thus, both may provide useful clinical information. The establishment of formal criteria for BKB-SIN scores and ANL scores that are predictive of excessive communication difficulty may help to identify Cl users who could benefit from additional audiologic rehabilitation.