Effects of Sensorineural Hearing Loss on Visually Guided Attention in a Multitalker Environment
Effects of Sensorineural Hearing Loss on Visually Guided Attention in a Multitalker Environment
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DOI：
10.1007/s10162-008-0146-7
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发表时间：
2009-03-01
影响因子：
2.4
通讯作者：
Shinn-Cunningham, Barbara G.
中科院分区：
文献类型：
--
作者：
Best, Virginia;Marrone, Nicole;Shinn-Cunningham, Barbara G.
本研究询问感音神经性听力损失的听者在有干扰性说话者的情况下，使用自上而下的注意力来提高语音清晰度的能力是否受损。听众会看到一串目标数字，这些数字嵌入在五个空间分离的语音流中。在听力损失的听众、听力正常的听众和听力正常的听众的对照组中，提供简单的视觉线索表明目标何时和/或何处会发生的好处被测量了，听力损失的听众以较低的目标与掩蔽比进行测试，以使他们的基线（无线索）表现与听力损失组相等。所有小组都从视觉提示中获得了显著的好处。然而，在听力受损的听者中，空间提示的效果要小得多。结果表明，听力损失的听众在日常听力情况下，解决同步声音之间竞争的选择性注意的效用降低，导致了他们的沟通困难。
This study asked whether or not listeners with sensorineural hearing loss have an impaired ability to use top-down attention to enhance speech intelligibility in the presence of interfering talkers. Listeners were presented with a target string of spoken digits embedded in a mixture of five spatially separated speech streams. The benefit of providing simple visual cues indicating when and/or where the target would occur was measured in listeners with hearing loss, listeners with normal hearing, and a control group of listeners with normal hearing who were tested at a lower target-to-masker ratio to equate their baseline (no cue) performance with the hearing-loss group. All groups received robust benefits from the visual cues. The magnitude of the spatial-cue benefit, however, was significantly smaller in listeners with hearing loss. Results suggest that reduced utility of selective attention for resolving competition between simultaneous sounds contributes to the communication difficulties experienced by listeners with hearing loss in everyday listening situations.