The relationship between the acoustic reflex threshold and levels of loudness categories in hearing-impaired listeners.

S O Olsen, A N Rasmussen, L H Nielsen, B V Borgkvist
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引用次数: 7

Abstract

When applied as a tool for hearing aid fitting, categorical loudness scaling (CLS) is time consuming and not feasible in all subjects. It is therefore desirable to use objective measures for accurate prediction of loudness categories among hearing-impaired individuals. The present study aimed at exploring whether loudness perception at the ART is constant with varying hearing threshold. Seventy-five subjects with various degrees of hearing impairment, measurable acoustic reflex and normal middle ear function participated. The HTLs, ARTs and the levels of six loudness categories at frequencies 0.5, 1, 2 and 4 kHz were determined for all subjects. Loudness at the ART was found to be correlated with the amount of hearing loss. On the basis of these results, it is concluded that the ART cannot be used for accurate estimation of loudness in hearing-impaired subjects.

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听障听者声反射阈值与响度分类水平的关系。
分类响度法(CLS)作为助听器验配的一种工具,不仅耗时,而且并不适用于所有被试。因此,需要使用客观的测量方法来准确预测听力受损个体的响度类别。本研究旨在探讨在不同的听阈下,ART的响度感知是否恒定。75名不同程度的听力障碍、可测量的声反射和中耳功能正常的受试者参加了实验。测定了所有受试者在0.5、1、2和4 kHz频率下的HTLs、ARTs和6个响度类别的水平。研究发现,接受ART治疗时的响度与听力损失的程度相关。基于这些结果,我们得出结论,ART不能用于准确估计听障受试者的响度。
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