Stimulus and listener factors affecting age-related changes in competing speech perception
Stimulus and listener factors affecting age-related changes in competing speech perception
复制标题
DOI：
10.1121/1.4887463
复制
发表时间：
2014-08-01
影响因子：
2.4
通讯作者：
Freyman, Richard L.
中科院分区：
文献类型：
--
作者：
Helfer, Karen S.;Freyman, Richard L.
本研究的目的是检查听力阈值、认知能力和在不利听力条件下的言语理解之间的关系，这些条件在年轻人、中年人和老年人群体之间。参与者在几种类型的蒙面者面前重复播放的回句（语法相似和语法不同的来自其他一两个说话者的竞争性语音，以及稳态语音形状的噪音）。他们还完成了听觉短期/工作记忆、处理速度和抑制能力的测试。结果表明，组间单词识别的准确性和错误模式的差异取决于掩蔽声音的数量；具体来说，与年轻人相比，老年人和中年人在面对单一竞争信息时尤其困难。然而，句法相似性的影响在不同的被试群体中是一致的。听力损失、短期记忆、处理速度和抑制能力都与中老年参与者的某些方面的表现有关。值得注意的是，与年龄相关的语音识别变化在中年听众群体中很明显。(C) 2014年美国声学学会。
The purpose of this study was to examine associations among hearing thresholds, cognitive ability, and speech understanding in adverse listening conditions within and between groups of younger, middle-aged, and older adults. Participants repeated back sentences played in the presence of several types of maskers (syntactically similar and syntactically different competing speech from one or two other talkers, and steady-state speech-shaped noise). They also completed tests of auditory short-term/working memory, processing speed, and inhibitory ability. Results showed that group differences in accuracy of word identification and in error patterns differed depending upon the number of masking voices; specifically, older and middle-aged individuals had particular difficulty, relative to younger subjects, in the presence of a single competing message. However, the effect of syntactic similarity was consistent across subject groups. Hearing loss, short-term memory, processing speed, and inhibitory ability were each related to some aspects of performance by the middle-aged and older participants. Notably, substantial age-related changes in speech recognition were apparent within the group of middle-aged listeners. (C) 2014 Acoustical Society of America.