Measures of hearing threshold and temporal processing across the adult lifespan.
Measures of hearing threshold and temporal processing across the adult lifespan.
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DOI：
10.1016/j.heares.2009.09.010
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发表时间：
2010-06-01
期刊：
影响因子：
2.8
通讯作者：
Kinney, Dana
中科院分区：
文献类型：
--
作者：
Humes, Larry E.;Kewley-Port, Diane;Fogerty, Daniel;Kinney, Dana
心理物理数据的听力灵敏度和各种措施的阈上听觉时间处理的青年（18-35岁），中年（40-55岁）和老年人（60-89岁）的成年人。在500、1414和4000 Hz下测量听力阈值。时间处理的措施，包括间隙检测阈值为中心的噪音在1000和3500赫兹，刺激开始的单声道和双耳的时间顺序识别简短的元音，和刺激开始/偏移的单声道时间掩蔽元音识别的阈值。对于所有的时间处理措施，老年人的高频听力损失的影响最小化的低通滤波的刺激和使用高的呈现水平的组合。老年人的表现比年轻人差，除了在1000 Hz的间隙检测阈值的所有措施。中年人的表现比年轻人的阈值敏感性的措施和四个措施的时间顺序识别显着较差，但不是任何时间掩蔽的措施。个体差异也检查了一组124名老年人。认知和年龄被认为是显着的预测因子，虽然只有10-27%的方差可以解释这些预测因子。
Psychophysical data on hearing sensitivity and various measures of supra-threshold auditory temporal processing are presented for large groups of young (18–35 y), middle-aged (40–55 y) and older (60–89 y) adults. Hearing thresholds were measured at 500, 1414 and 4000 Hz. Measures of temporal processing included gap-detection thresholds for bands of noise centered at 1000 and 3500 Hz, stimulus onset asynchronies for monaural and dichotic temporal-order identification for brief vowels, and stimulus onset/offset asynchronies for the monaural temporal masking of vowel identification. For all temporal-processing measures, the impact of high-frequency hearing loss in older adults was minimized by a combination of low-pass filtering the stimuli and use of high presentation levels. The performance of the older adults was worse than that of the young adults on all measures except gap-detection threshold at 1000 Hz. Middle-aged adults performed significantly worse than the young adults on measures of threshold sensitivity and three of the four measures of temporal-order identification, but not for any of the measures of temporal masking. Individual differences are also examined among a group of 124 older adults. Cognition and age were found to be significant predictors, although only 10–27% of the variance could be accounted for by these predictors.
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