Evaluation of central auditory discrimination abilities in older adults.
Evaluation of central auditory discrimination abilities in older adults.
复制标题
评估老年人中央听觉歧视能力。
DOI：
10.3389/fnagi.2011.00006
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发表时间：
2011
影响因子：
4.8
通讯作者：
Rübsamen R
中科院分区：
文献类型：
--
作者：
Freigang C;Schmidt L;Wagner J;Eckardt R;Steinhagen-Thiessen E;Ernst A;Rübsamen R
本研究的重点是65-89岁的老年人的听觉辨别能力。我们应用了“莱比锡病人心理声学清单”（LIPP），心理声学测试电池专门设计用于识别中央听觉处理的缺陷。这些测试量化了三个基本声学参数（即，频率、强度和信号持续时间）。采用三种不同的测试模式[单耳、双耳信号/噪声（s/n）和双耳]，刺激水平为35 dB感觉水平。该测试被设计为三个备选的强制选择程序，最大似然程序估计p = 0.5的正确响应值。这些程序已被证明是高效的，并提供了可靠的结果。这些测量结果产生了显着的年龄依赖性恶化的能力，以区分单一的声学功能，指向渐进性损害的中央听觉处理。恶化程度与不同的声学特征和测试模式相关。最突出的是，在低测试频率的耳间频率和信号持续时间的歧视升高，这表明在脑干和皮层水平的时间和相位依赖性处理的恶化。LIPP被证明是一个有效的工具，以确定基本的病理生理机制和来源的特定损害的听觉处理的老年人。
The present study focuses on auditory discrimination abilities in older adults aged 65–89 years. We applied the “Leipzig inventory for patient psychoacoustic” (LIPP), a psychoacoustic test battery specifically designed to identify deficits in central auditory processing. These tests quantify the just noticeable differences (JND) for the three basic acoustic parameters (i.e., frequency, intensity, and signal duration). Three different test modes [monaural, dichotic signal/noise (s/n) and interaural] were used, stimulus level was 35 dB sensation level. The tests are designed as three-alternative forced-choice procedure with a maximum-likelihood procedure estimating p = 0.5 correct response value. These procedures have proven to be highly efficient and provide a reliable outcome. The measurements yielded significant age-dependent deteriorations in the ability to discriminate single acoustic features pointing to progressive impairments in central auditory processing. The degree of deterioration was correlated to the different acoustic features and to the test modes. Most prominent, interaural frequency and signal duration discrimination at low test frequencies was elevated which indicates a deterioration of time- and phase-dependent processing at brain stem and cortical levels. LIPP proves to be an effective tool to identify basic pathophysiological mechanisms and the source of a specific impairment in auditory processing of the elderly.
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影响因子：
2.4
作者：
Divenyi, PL;Stark, PB;Haupt, KM
通讯作者：
Haupt, KM
影响因子：
2.6
作者：
Fitzgibbons, PJ;Gordon-Salant, S
通讯作者：
Gordon-Salant, S
影响因子：
2.6
作者：
Dubno, JR;Lee, FS;Mills, JH
通讯作者：
Mills, JH
影响因子：
2.8
作者：
Felder, E;SchrottFischer, A
通讯作者：
SchrottFischer, A
DOI：
10.1007/s10162-008-0113-3
发表时间：
2008-06-01
影响因子：
2.4
作者：
Eckert, Mark A.;Walczak, Adam;Dubno, Judy R.
通讯作者：
Dubno, Judy R.