弱、强耳声发射正常听力受试者的强度识别、时间整合和间隙检测。

J Smurzynski, R Probst
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引用次数: 6

摘要

如果耳蜗和中耳的灵敏度正常,那么产生强耳声发射(oae),即高水平诱发发射(eoae)和自发发射(soae)的耳蜗和中耳的整体状态不太可能对周围听觉加工产生普遍影响。目前的数据并不支持弱OAE特征(低水平OAE和无soae)表明耳蜗亚临床损伤的假设。然而,受试者执行某些心理声学任务的能力可能会受到声发射和测试信号之间相互作用的影响。本实验研究了强声发射和弱声发射对(1)纯音的强度差异;(2) soae附近的时间积分;(3)宽带噪声突发的间隙检测阈值。结果表明,声谱信号会影响受试者在这些心理声学任务中的表现,特别是在声谱信号附近的低水平刺激。
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Intensity discrimination, temporal integration and gap detection by normally-hearing subjects with weak and strong otoacoustic emissions.

It is unlikely that the overall status of a cochlea and middle ear which produces strong otoacoustic emissions (OAEs), i.e. high-level evoked emissions (EOAEs) and spontaneous emissions (SOAEs), has a generalized effect on peripheral auditory processing if the sensitivity is normal. Current data do not support the hypothesis that a weak OAE profile (low-level EOAEs and no SOAEs) is indicative of subclinical damage to the cochlea. Nevertheless, the ability of a subject to perform some psychoacoustical tasks may be influenced by the interaction between OAEs and test signals. The present experiments investigated the influence of strong or weak OAEs on: (1) intensity just-noticeable differences for pure tones; (2) temporal integration in the vicinity of SOAEs; (3) gap detection thresholds for broad-band noise bursts. The results show that OAEs can influence performance on these psychoacoustical tasks, especially for low-level stimuli with spectral components in the vicinity of high-level SOAEs.

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