School of Speech-Language Pathology and Audiology, Santa Casa de Sao Paulo School of Medical Sciences, São Paulo, Brazil.
Brazilian Navy, Santa Casa de Sao Paulo School of Medical Sciences, São Paulo, Brazil.
Int J Audiol. 2021 Dec;60(12):1016-1022. doi: 10.1080/14992027.2021.1909759. Epub 2021 Apr 15.
The aims of this study were to investigate auditory habits and binaural interaction among pilot and non-pilot military personnel from the Brazilian Air Force.
A cross-sectional study using (1) an auditory habits questionnaire to outline the groups auditory profile and (2) the masking level difference test (MLD, Auditec, Saint Louis®) to evaluate and compare the groups.
Forty military male personnel aged between 30-40 years old, all with normal hearing, comprising 20 pilots in the study group (SG), and 20 non-pilots, not exposed to noise, in the control group (CG).
There was no significant difference between groups regarding auditory habits. In the MLD test, a significantly better performance under the homophasic condition (S0N0) was found in the SG. Under the antiphasic condition (SπN0) there were no differences between groups. This combination resulted in a significantly lower MLD in the SG compared to the CG.
Repeated exposure to conditions where active pilots have to learn to recognise speech in noisy backgrounds may lead to a better performance in the MLD's homophasic condition (S0N0).
本研究旨在调查巴西空军飞行员和非飞行员军事人员的听觉习惯和双耳相互作用。
使用（1）听觉习惯问卷来概述组的听觉特征，（2）掩蔽级差测试（MLD，Auditec，圣路易斯®）来评估和比较组。
40 名年龄在 30-40 岁之间的男性军事人员，均具有正常听力，包括 20 名研究组飞行员（SG）和 20 名非飞行员，不受噪声暴露，在对照组（CG）。
两组在听觉习惯方面无显著差异。在 MLD 测试中，SG 在同相条件（S0N0）下表现出明显更好的性能。在反相条件（SπN0）下，两组之间没有差异。与 CG 相比，SG 的 MLD 明显较低。
反复暴露于飞行员必须学会在嘈杂背景中识别语音的条件下，可能导致 MLD 的同相条件（S0N0）表现更好。
