PDF(Pubmed)
Abstract：
UNASSIGNED: Comprehension of speech in adverse listening conditions is challenging for hearing-impaired (HI) individuals. Noise reduction (NR) schemes in hearing aids (HAs) have demonstrated the capability to help HI to overcome these challenges. The objective of this study was to investigate the effect of NR processing (inactive, where the NR feature was switched off, vs. active, where the NR feature was switched on) on correlates of listening effort across two different background noise levels [+3 dB signal-to-noise ratio (SNR) and +8 dB SNR] by using a phase synchrony analysis of electroencephalogram (EEG) signals.
UNASSIGNED: The EEG was recorded while 22 HI participants fitted with HAs performed a continuous speech in noise (SiN) task in the presence of background noise and a competing talker. The phase synchrony within eight regions of interest (ROIs) and four conventional EEG bands was computed by using a multivariate phase synchrony measure.
UNASSIGNED: The results demonstrated that the activation of NR in HAs affects the EEG phase synchrony in the parietal ROI at low SNR differently than that at high SNR. The relationship between conditions of the listening task and phase synchrony in the parietal ROI was nonlinear.
UNASSIGNED: We showed that the activation of NR schemes in HAs can non-linearly reduce correlates of listening effort as estimated by EEG-based phase synchrony. We contend that investigation of the phase synchrony within ROIs can reflect the effects of HAs in HI individuals in ecological listening conditions.
UNASSIGNED: The EEG was recorded while 22 HI participants fitted with HAs performed a continuous speech in noise (SiN) task in the presence of background noise and a competing talker. The phase synchrony within eight regions of interest (ROIs) and four conventional EEG bands was computed by using a multivariate phase synchrony measure.
UNASSIGNED: The results demonstrated that the activation of NR in HAs affects the EEG phase synchrony in the parietal ROI at low SNR differently than that at high SNR. The relationship between conditions of the listening task and phase synchrony in the parietal ROI was nonlinear.
UNASSIGNED: We showed that the activation of NR schemes in HAs can non-linearly reduce correlates of listening effort as estimated by EEG-based phase synchrony. We contend that investigation of the phase synchrony within ROIs can reflect the effects of HAs in HI individuals in ecological listening conditions.
摘要：
UASSIGNED：对于听力受损（HI）的人来说，在不利的听力条件下理解语音是具有挑战性的。助听器(HA)中的降噪(NR)方案已经证明了帮助HI克服这些挑战的能力。这项研究的目的是调查NR处理的效果(不活跃，NR功能被关闭，vs.活跃,其中NR功能已打开）通过使用脑电图（EEG）的相位同步分析，在两个不同背景噪声水平[3dB信噪比（SNR）和8dBSNR]上的听力相关信号。
未经ASSIGNED：记录了EEG，而22名配备HA的HI参与者在存在背景噪声和竞争性讲话者的情况下进行了连续的噪声语音（SiN）任务。通过使用多变量相位同步度量来计算八个感兴趣区域（ROI）和四个常规EEG频带内的相位同步。
UNASSIGNED：结果表明，HA中NR的激活在低SNR下与在高SNR下不同地影响顶叶ROI中的EEG相位同步。听音任务条件与顶叶ROI中的相位同步之间的关系是非线性的。
UNASSIGNED：我们表明，HA中NR方案的激活可以非线性地减少基于EEG的相位同步估计的听力努力的相关性。我们认为，对ROI内相位同步性的调查可以反映出在生态听力条件下HI个体中HA的影响。
未经ASSIGNED：记录了EEG，而22名配备HA的HI参与者在存在背景噪声和竞争性讲话者的情况下进行了连续的噪声语音（SiN）任务。通过使用多变量相位同步度量来计算八个感兴趣区域（ROI）和四个常规EEG频带内的相位同步。
UNASSIGNED：结果表明，HA中NR的激活在低SNR下与在高SNR下不同地影响顶叶ROI中的EEG相位同步。听音任务条件与顶叶ROI中的相位同步之间的关系是非线性的。
UNASSIGNED：我们表明，HA中NR方案的激活可以非线性地减少基于EEG的相位同步估计的听力努力的相关性。我们认为，对ROI内相位同步性的调查可以反映出在生态听力条件下HI个体中HA的影响。
