Analysis of the Masking Principle in Clinical Audiometry
10.3969/j.issn.1006-7299.2025.01.019
- VernacularTitle:临床听力检测掩蔽的原理分析
- Author:
Mengqian ZHANG
1
;
Lidong ZHAO
;
Xianhai ZENG
;
Juanjuan LI
Author Information
1. 深圳市龙岗区耳鼻咽喉医院,深圳市耳鼻咽喉研究所(深圳 518172)
- Publication Type:Journal Article
- Keywords:
Traveling wave theory;
Two-tone suppression;
Dopamine receptor;
Phase locking;
Con-tralateral suppression of OAE
- From:
Journal of Audiology and Speech Pathology
2025;33(1):92-95
- CountryChina
- Language:Chinese
-
Abstract:
Masking is an important tool to evaluate auditory function,but it has always posed challenges in clinical audiology tests.This is mainly because of the lack of in-depth research into the biological mechanisms of masking over a long period,and an insufficient understanding of the principles of masking generation.This article describes the neurobiological fundamentals of clinical audiology test masking in terms of altered resonance patterns in the basilar membrane,the two-tone suppression effect of cochlear outer hair cell receptor potentials,the loss of bal-ance between excitatory and inhibitory transmitters at dopamine receptors,and disturbances in the phenomenon of phase-locking of nerve discharges.Overmasking is due to an enhanced contralateral inhibitory effect on cochlear out-er hair cell motility.This article aims to provide further guidance for clinical audiologist or physician in the proper use of masking.
