Effects of Ambient Acoustic Noise on Auditory Brainstem Response to Level-Specific Chirp and Click Stimuli in Normal-Hearing Adults

IF 1.1 Q3 OTORHINOLARYNGOLOGY

Journal of Audiology and Otology Pub Date : 2022-05-27 DOI:10.7874/jao.2021.00689

A. Dzulkarnain, Balqis Aqilah Mat Rahed, F. A. Shahrudin, F. N. Jamal, M. Zakaria

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引用次数: 0

Abstract

Background and Objectives Despite few reports on the influence of ambient acoustic noise on auditory brainstem response (ABR) to click stimuli, its effects on ABR to level-specific (LS) stimuli have not been systematically investigated. This study aimed to investigate the influence of ambient acoustic noise on ABR findings using both LS chirp and click stimuli. Subjects and Methods Twelve normal-hearing adults participated in this repeated measure design study. The ABRs were acquired at 80, 50, and 30 dBnHL using two stimuli (LS chirp and click) under two conditions (quiet and noise). The ABRs under noise conditions were acquired using babble noise and white noise. The noise level was set at 55 dBA. Two-way repeated measure analysis was used to identify the main effects of the test conditions, stimulus types, and their interactions at a 95% confidence level. Results No significant influence of ambient acoustic noise on ABR findings was identified at all intensity levels. No significant difference was found in the number of signal averages to reach the 0.04 μV residual noise as stopping criteria among the ABRs recorded with different types of stimuli and test conditions. The ABR waves I and V amplitudes were larger with LS chirp than with click stimulus. Conclusions Ambient acoustic noise has no significant influence on ABR findings and the ABR test time based on the 55 dBA noise level used in this study.

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环境噪声对正常听力成人听觉脑干对特定水平啁啾和咔嗒刺激反应的影响

背景与目的虽然环境噪声对点击刺激下听觉脑干反应(ABR)影响的报道很少，但其对水平特异性刺激(LS)的影响还没有系统的研究。本研究旨在探讨环境噪声对LS啁啾和咔哒声刺激下ABR结果的影响。12名听力正常的成年人参加了重复测量设计研究。在80,50和30 dBnHL下，使用两种刺激(LS啁啾和click)在两种条件下(安静和噪音)获得abr。在噪声条件下，分别利用牙牙学噪声和白噪声获取abr。噪声水平设置为55 dBA。采用双向重复测量分析，以95%的置信度确定测试条件、刺激类型及其相互作用的主要影响。结果在所有强度水平下均未发现环境噪声对ABR结果的显著影响。在不同刺激类型和测试条件下记录的abr中，达到0.04 μV残差噪声的信号平均次数无显著差异。LS啁啾刺激下的ABR波I和V幅值大于点击刺激。结论在55 dBA噪声水平下，环境噪声对ABR结果和ABR测试时间无显著影响。

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来源期刊

Journal of Audiology and Otology OTORHINOLARYNGOLOGY-

CiteScore

1.90

自引率

9.10%

发文量

期刊介绍： Journal of Audiology and Otology (JAO) (formerly known as Korean Journal of Audiology) aims to publish the most advanced findings for all aspects of the auditory and vestibular system and diseases of the ear using state-of-the-art techniques and analyses. The journal covers recent trends related to the topics of audiology, otology, and neurotology conducted by professionals, with the goal of providing better possible treatment to people of all ages, from infants to the elderly, who suffer from auditory and/or vestibular disorders and thus, improving their quality of life. This journal encourages the submission of review papers about current professional issues, research papers presenting a scientific base and clinical application, and case papers with unique reports or clinical trials. We also invite letters to the editor and papers related to the manufacture and distribution of medical devices. This journal provides integrated views from otologists, audiologists, and other healthcare practitioners, offering readers high quality scientific and clinical information. This peer-reviewed and open access journal has been the official journal of the Korean Audiological Society since 1997 and of both the Korean Audiological Society and the Korean Otological Society since 2017. It is published in English four times a year in January, April, July, and October.