Elderly listeners with low intelligibility scores under reverberation show degraded subcortical representation of reverberant speech
Elderly listeners with low intelligibility scores under reverberation show degraded subcortical representation of reverberant speech
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DOI：
10.1016/j.neulet.2016.11.042
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发表时间：
2017-01-10
影响因子：
2.5
通讯作者：
Remijn, G. B.
中科院分区：
文献类型：
--
作者：
Fujihira, H.;Shiraishi, K.;Remijn, G. B.
为了解释为什么许多老年听者在混响环境下难以理解言语，我们调查了28名老年听者的单词清晰度与听性脑干反应(ABR)的关系。我们假设，在混响环境下，单词清晰度得分较低的老年听者将表现出混响语音皮层下编码信息的退化，如他们的ABR所表达的那样，指向混响的ida/音节。根据受试者对无回声词和混响词的单词清晰度得分，将受试者分为两组(表演组和表演组)，并比较组间ABR特征。我们发现，最差演奏组对无回声和混响Ida/的反应之间的相关系数低于最高演奏组。这一结果表明，老年听者对混响言语信息的神经表征能力下降可能是混响言语可懂度降低的原因。(C)2016年提交人。爱思唯尔爱尔兰有限公司出版。
In order to elucidate why many elderly listeners have difficulty understanding speech under reverberation, we investigated the relationship between word intelligibility and auditory brainstem responses (ABRs) in 28 elderly listeners. We hypothesized that the elderly listeners with low word intelligibility scores under reverberation would show degraded subcortical encoding information of reverberant speech as expressed in their ABRs towards a reverberant Ida/syllable. The participants were divided into two groups (top and bottom performance groups) according to their word intelligibility scores for anechoic and reverberant words, and ABR characteristics between groups were compared. We found that correlation coefficients between responses to anechoic and reverberant Ida/were lower in the bottom performance group than in the top performance group. This result suggests that degraded neural representation toward information of reverberant speech may account for lower intelligibility of reverberant speech in elderly listeners. (C) 2016 The Authors. Published by Elsevier Ireland Ltd.