• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The European journal of neuroscience. >Differences between children and adults in the neural encoding of voice fundamental frequency in the presence of noise and reverberation
【24h】

Differences between children and adults in the neural encoding of voice fundamental frequency in the presence of noise and reverberation

机译：Differences between children and adults in the neural encoding of voice fundamental frequency in the presence of noise and reverberation

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

Abstract Environmental noise and reverberation challenge speech understanding more significantly in children than in adults. However, the neural/sensory basis for the difference is poorly understood. We evaluated the impact of noise and reverberation on the neural processing of the fundamental frequency of voice (f0)—an important cue to tag or recognize a speaker. In a group of 39 6‐ to 15‐year‐old children and 26 adults with normal hearing, envelope following responses (EFRs) were elicited by a male‐spoken /i/ in quiet, noise, reverberation, and both noise and reverberation. Due to increased resolvability of harmonics at lower than higher vowel formants that may affect susceptibility to noise and/or reverberation, the /i/ was modified to elicit two EFRs: one initiated by the low frequency first formant (F1) and the other initiated by mid to high frequency second and higher formants (F2+) with predominantly resolved and unresolved harmonics, respectively. F1 EFRs were more susceptible to noise whereas F2+?EFRs were more susceptible to reverberation. Reverberation resulted in greater attenuation of F1 EFRs in adults than children, and greater attenuation of F2+?EFRs in older than younger children. Reduced modulation depth caused by reverberation and noise explained changes in F2+?EFRs but was not the primary determinant for F1 EFRs. Experimental data paralleled modelled EFRs, especially for F1. Together, data suggest that noise or reverberation influences the robustness of f0 encoding depending on the resolvability of vowel harmonics and that maturation of processing temporal/envelope information of voice is delayed in reverberation, particularly for low frequency stimuli.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号