The influence of age and high-frequency hearing loss on sensitivity to temporal fine structure at low frequencies (L)
The influence of age and high-frequency hearing loss on sensitivity to temporal fine structure at low frequencies (L)
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DOI：
10.1121/1.3672808
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发表时间：
2012-02-01
影响因子：
2.4
通讯作者：
Hopkins, Kathryn
中科院分区：
文献类型：
--
作者：
Moore, Brian C. J.;Glasberg, Brian R.;Hopkins, Kathryn
即使低频的绝对阈值在正常范围内，低频的时间精细结构（TFS）的敏感性也可能受到高频听力损失的不利影响。然而，在几项研究中，听力损失和年龄的影响被混淆了。在这里，耳间相位辨别（IPD）的纯音阈值在500和750赫兹的39名受试者，年龄从61岁到83岁。所有受试者在低频时的听力阈值接近正常，但在高频时，受试者的阈值各不相同。IPD阈值与年龄相关。750 Hz测试频率的IPD阈值与高频绝对阈值弱相关，但当年龄的影响偏出时，这些相关性变得不显着。研究结果并没有证实低频对TFS的敏感性受到高频听力损失的影响，与年龄无关。(C)2012年美国声学学会。[DOI 10.1121/1.3672808]
Sensitivity to temporal fine structure (TFS) at low frequencies may be adversely affected by hearing loss at high frequencies even when absolute thresholds at low frequencies are within the normal range. However, in several studies suggesting this, the effects of hearing loss and age were confounded. Here, interaural phase discrimination (IPD) thresholds for pure tones at 500 and 750 Hz were measured for 39 subjects with ages from 61 to 83 yr. All subjects had near-normal audiometric thresholds at low frequencies, but thresholds varied across subjects at high frequencies. IPD thresholds were correlated with age. IPD thresholds for the test frequency of 750 Hz were weakly correlated with absolute thresholds at high frequencies, but these correlations became non-significant when the effect of age was partialed out. The results do not confirm that sensitivity to TFS at low frequencies is influenced by hearing loss at high frequencies, independently of age. (C) 2012 Acoustical Society of America. [DOI: 10.1121/1.3672808]