Effects of Sensorineural Hearing Loss on Cortical Synchronization to Competing Speech during Selective Attention
Effects of Sensorineural Hearing Loss on Cortical Synchronization to Competing Speech during Selective Attention
复制标题
DOI：
10.1523/jneurosci.1936-19.2020
复制
发表时间：
2020-03-18
影响因子：
5.3
通讯作者：
Hjortkjaer, Jens
中科院分区：
文献类型：
--
作者：
Fuglsang, Soren A.;Marcher-Rorsted, Jonatan;Hjortkjaer, Jens
当在多说话者场景中选择性地关注语音流时，已知低频皮层活动选择性地与关注的语音信号中的波动同步。患有与年龄相关的感觉神经性听力损失（老年性耳聋）的老年人在这种情况下往往难以理解言语，即使戴着助听器。然而，目前还不清楚周围性听力损失是否会降低皮层语音跟踪的注意力调制。在这里，我们使用心理声学和脑电图（EEG）在男性和女性的人类听众，以检查潜在的影响听力损失的脑电相关的语音包络同步在皮层。行为上，老年听力受损（HI）的听众表现出退化的语音噪声识别和降低时间敏锐度与年龄匹配的正常听力（NH）的控制。在EEG记录过程中，我们使用了选择性注意任务，两个空间分离的同时语音流，NH和HI的听众都表现出很高的语音识别性能。低频（
When selectively attending to a speech stream in multi-talker scenarios, low-frequency cortical activity is known to synchronize selectively to fluctuations in the attended speech signal. Older listeners with age-related sensorineural hearing loss (presbycusis) often struggle to understand speech in such situations, even when wearing a hearing aid. Yet, it is unclear whether a peripheral hearing loss degrades the attentional modulation of cortical speech tracking. Here, we used psychoacoustics and electroencephalography (EEG) in male and female human listeners to examine potential effects of hearing loss on EEG correlates of speech envelope synchronization in cortex. Behaviorally, older hearing-impaired (HI) listeners showed degraded speech-in-noise recognition and reduced temporal acuity compared with age-matched normal-hearing (NH) controls. During EEG recordings, we used a selective attention task with two spatially separated simultaneous speech streams where NH and HI listeners both showed high speech recognition performance. Low-frequency (