高强度声音暴露对响度辨别阈的影响。

The effect of high level sound exposure on the loudness difference limen.

作者信息

Bienvenue G R, Michael P L, Violon-Singer J R

出版信息

Am Ind Hyg Assoc J. 1976 Nov;37(11):628-35. doi: 10.1080/0002889768507535.

Abstract

Currently used threshold audiograms fail to detect the early stages of noise-induced hearing impairment. Threshold shifts may reach 10 to 15 dB before the impairment is detected. Loudness difference limen and critical band phenomena may provide an earlier and more sensitive test for such hearing impairment. Data is reported which shows that the difference limen shift (DLS) due to noise persists longer than temporary threshold shift (TTS). These findings suggest that DLS may be a more feasible tool for industrial use than either TTS or monitoring audiometry.

摘要

目前使用的阈值听力图无法检测出噪声性听力损伤的早期阶段。在检测到损伤之前，阈值变化可能达到10至15分贝。响度辨别阈和临界频带现象可能为此类听力损伤提供更早且更敏感的测试。报告的数据表明，噪声引起的辨别阈变化（DLS）持续的时间比暂时性阈值变化（TTS）更长。这些发现表明，对于工业用途而言，DLS可能是比TTS或监测听力测定法更可行的工具。