Relations between speech-reception, psychophysical temporal processing, and subcortical electrophysiological measures of auditory function in humans.
Relations between speech-reception, psychophysical temporal processing, and subcortical electrophysiological measures of auditory function in humans.
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DOI：
10.1016/j.heares.2022.108456
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发表时间：
2022-04
期刊：
影响因子：
2.8
通讯作者：
Plack CJ
中科院分区：
文献类型：
--
作者：
Carcagno S;Plack CJ
掩蔽语音接收与听觉时间处理能力有关。没有证据表明皮质下脑电测量与语音接收能力有关。没有证据表明皮质下脑电测量与听觉时间处理有关。在低频听力正常或相对正常的听者之间，在掩蔽言语接收任务和心理物理听觉时间处理任务中，存在着大量的表现差异。在这项研究中，我们使用从102名听者(34名年轻人，34名中年人，34名老年人)收集的横断面数据集来评估这些任务的差异是否可以用听觉功能的皮质下电生理指标(听觉脑干反应和频率跟踪反应)的差异来解释，以及言语接收性能的差异是否可以用听觉时间处理任务的差异来解释。通过使用高通掩蔽噪声，严格控制高频灵敏度的潜在混杂效应。由于每个高级结构(掩蔽语音接收、听觉时间处理和皮层下电生理功能)由几个变量索引，我们使用主成分分析来降低数据集的维度。然后使用多元回归模型来评估提取的主成分之间的关联，同时控制包括年龄和听力阈值在内的一系列可能的混杂因素。我们发现，掩蔽言语接收与心理物理听觉时间处理能力有可靠的联系。在掩蔽言语接收和皮层下听觉功能的电生理测量之间，或者在听觉时间加工的心理物理测量和皮质下听觉功能的电生理测量之间，没有发现可信的联系。这些结果表明，所使用的皮层下听觉功能的电生理测量对限制语音接收和心理物理听觉时间加工任务的皮层下神经过程不够敏感，或者这些任务的差异在很大程度上与听力接近正常的听者的皮质下神经过程的差异无关。
Masked-speech reception is associated with auditory temporal-processing performance. No evidence that subcortical EEG measures are related to speech-reception performance. No evidence that subcortical EEG measures are related to auditory temporal processing. There is a large amount of variability in performance in masked-speech reception tasks, as well as in psychophysical auditory temporal processing tasks, between listeners with normal or relatively normal low-frequency hearing. In this study we used a cross-sectional dataset collected on 102 listeners (34 young, 34 middle-aged, 34 older) to assess whether variance in these tasks could be explained by variance in subcortical electrophysiological measures of auditory function (auditory brainstem responses and frequency following responses), and whether variance in speech-reception performance could be explained by variance in auditory temporal processing tasks. The potential confounding effect of high-frequency sensitivity was strictly controlled for by using highpass masking noise. Because each high-level construct (masked-speech reception, auditory temporal processing, and subcortical electrophysiological function) was indexed by several variables, we used principal component analyses to reduce the dimensionality of the dataset. Multiple-regression models were then used to assess the associations between the extracted principal components while controlling for a range of possible confounders including age and audiometric thresholds. We found that masked-speech reception was credibly associated with psychophysical auditory temporal processing abilities. No credible associations were found between masked-speech reception and electrophysiological measures of subcortical auditory function, or between psychophysical measures of auditory temporal processing and electrophysiological measures of subcortical auditory function. These results suggest that either the electrophysiological measures of subcortical auditory function used were not sufficiently sensitive to the subcortical neural processes limiting performance in the speech-reception and psychophysical auditory temporal-processing tasks, or that variance in these tasks is largely unrelated to variance in subcortical neural processes in listeners with near-normal hearing.
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