Effect of forward masking on auditory brainstem response in individuals with tinnitus.

IF 1.9 3区医学 Q2 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY

International Journal of Audiology Pub Date : 2025-09-24 DOI:10.1080/14992027.2025.2561888

Durga S Kumar, Sreeraj Konadath

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引用次数: 0

Abstract

Objective: To examine the impact of forward masking (FM), both on-frequency and off-frequency, on low (0.5 kHz), mid (1 & 2 kHz), and high-frequency (4 kHz) probe stimuli in Auditory brainstem response (ABR) test for individuals with tinnitus.

Design: The experimental design followed a standard group comparison research, where ABR was acquired across three experimental conditions: unmasked, off-frequency FM, and on-frequency FM.

Study sample: Thirty participants with tinnitus and 30 without tinnitus were recruited.

Results: The between-group comparison showed that the tinnitus group exhibited a longer wave V peak absolute latency and smaller response amplitude than controls for unmasked conditions. However, when the masker was introduced in both FM conditions, the tinnitus group tended to have an unidentifiable wave V peak response, which was significant at higher masker intensities.

Conclusions: The altered ABR in the tinnitus group under FM conditions could suggest altered neural synchrony and reduce nerve fiber firing at the subcor tical level in individuals with tinnitus.

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前向掩蔽对耳鸣患者听觉脑干反应的影响。

目的：探讨前向掩蔽（FM）对耳鸣患者听觉脑干反应（ABR）测试中低频（0.5 kHz）、中频（1和2 kHz）和高频（4 kHz）探针刺激的影响。设计：实验设计遵循标准的组比较研究，在三种实验条件下获得ABR：无掩蔽，低频调频和频调频。研究样本：30名耳鸣患者和30名非耳鸣患者被招募。结果：两组比较显示，耳鸣组在无掩蔽条件下的波V峰绝对潜伏期较长，反应幅度较小。然而，当在两种调频条件下引入掩蔽剂时，耳鸣组倾向于出现无法识别的波V峰响应，这在更高的掩蔽剂强度下是显著的。结论：FM条件下耳鸣组ABR的改变可能提示耳鸣患者的神经同步性改变和皮质下神经纤维放电减少。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Audiology 医学-耳鼻喉科学

CiteScore

4.90

自引率

14.80%

发文量

133

审稿时长

4-8 weeks

期刊介绍： International Journal of Audiology is committed to furthering development of a scientifically robust evidence base for audiology. The journal is published by the British Society of Audiology, the International Society of Audiology and the Nordic Audiological Society.