Do 'auditory processing' tests measure auditory processing in the elderly?
Do 'auditory processing' tests measure auditory processing in the elderly?
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DOI：
10.1097/00003446-200504000-00001
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发表时间：
2005-04-01
期刊：
影响因子：
3.7
通讯作者：
Humes, LE
中科院分区：
文献类型：
--
作者：
Humes, LE
目的：为了研究听觉处理的措施和措施的听觉或认知功能的老年人listeners与impaired hearing.Design之间的关联：多个措施的听觉处理的听觉功能，认知功能和线性，多元回归分析进行检查这些变量之间的关系。特别是，从213名老年参与者中获得了四项听觉处理措施。听觉处理的措施包括持续时间歧视为1000赫兹的纯音，时间顺序歧视中频纯音，双耳分音音节识别，并识别45%的时间压缩单音节。每位参与者还完成了额外的听觉功能测量，包括纯音阈值，每只耳朵的听觉脑干反应和两种呈现速率（每秒11.1和71.1次点击），以及单音节词的表现强度功能（PI-PB翻转）。最后，认知功能的三项措施，所有从韦氏成人智力量表修订，从213 participator.Results：三个四项措施的听觉处理在本研究中检查（持续时间歧视，时间顺序歧视，和两分CV识别），认知功能（IQ）和年龄的措施是两个主要的预测个体差异的性能。对于这三个听觉处理的措施，111%至14%的总方差可以解释的预测变量。对于听觉处理的其余措施（识别时间压缩的单音节），总方差的56%可以由一组四个预测变量，但大部分的方差（总方差的54%）与听力损失的个体差异。当听力损失被删除作为预测这个措施的听觉处理，14%的总方差解释了四个变量：年龄，智商，和两个措施来自听觉脑干反应波V潜伏期。老年听力障碍者在听觉处理测试中的表现与认知功能的个体差异而不是听觉功能有系统的相关性，特别是对于不受周边听力损失影响的刺激。然而，在听觉处理性能的变化仍然无法解释的任何预测变量在这项研究中检查。
Objective: To examine the associations between measures of auditory processing and measures of auditory or cognitive function in elderly listeners with impaired hearing.Design: Multiple measures of auditory processing' auditory function, and cognitive function were obtained and linear, multiple-regression analyses were conducted to examine the relations between these sets of variables. In particular, four measures of auditory processing were obtained from each of 213 elderly participants. Measures of auditory processing included duration discrimination for a 1000-Hz pure tone, temporal-order discrimination for mid-frequency pure tones, dichotic syllable identification, and recognition of 45% time-compressed monosyllables. Each participant also completed additional measures of auditory function, including pure-tone thresholds, auditory brain stem responses for each ear and at two presentation rates (11.1 and 71.1 clicks per second), and performance-intensity functions for monosyllabic words (PI-PB rollover). Finally, three measures of cognitive function, all from the Wechsler Adult Intelligence Scale-Revised, were obtained from the 213 participants.Results: For three of the four measures of auditory processing examined in this study (duration discrimination, temporal-order discrimination, and dichotic CV identification), a measure of cognitive function (IQ) and age were the two primary predictors of individual differences in performance. For these three measures of auditory processing, 111 to 14% of the total variance could be accounted for by the predictor variables. For the remaining measure of auditory processing (recognition of time-compressed monosyllables), 56% of the total variance could be accounted for by a set of four predictor variables, but most of this variance (54% of the total variance) was associated with individual differences in hearing loss. When hearing loss was removed as a predictor for this measure of auditory processing, 14% of the total variance was explained by four variables: age, IQ, and two measures derived from auditory brain stem response wave-V latency.Conclusions: Performance on the battery of auditory processing measures by elderly hearing-impaired listeners was systematically related to individual differences in cognitive function rather than auditory function, especially for stimuli not affected by peripheral hearing loss. However, much of the variance in auditory processing performance remained unaccounted for by any of the predictor variables examined in this study.