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首页> 外文期刊>Acoustics Australia >Psychophysiological Responses to Medium Levels of Occupational Noise: An Exposure-Response Relationships
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Psychophysiological Responses to Medium Levels of Occupational Noise: An Exposure-Response Relationships

机译：对中等职业噪声的心理生理反应：暴露 - 反应关系

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摘要

Medium noise levels are very common in work environments, and few studies have addressed their effects. This study aims to investigate the effects of real noise levels from four types of workplaces on psychophysiological responses. Thirty-one normal hearing male subjects were recruited. They were asked to judge the noise annoyance (NA) and noise-induced subjective load (NISL) of four occupational environments involved cognitive functions; closed office rooms (CO:57.8-65.2 dB(A), open-plan offices (OPO:65-71.8 dB(A), control rooms (CR:68.7-75 dB(A), and industrial noise (IN:75.5-81 dB(A). Meanwhile, the electrodermal activity (EDA), heart rate (HR), and respiration rate (RR) were monitored throughout the experiments. The saliva cortisol of subjects was also analyzed before and after each trial. The results were evaluated in the view of impact of noise and moderating factors using linear and mixed models, and a dose-response relationship was found for each response. The results showed that the NA were rated 26.5%, 39.5%, 53%, and 72.2%, in the CO, OPO, CR, and IN, respectively, and NISL increase in levels >= 65 dB(A)(OPO). In addition to subjective effects, the medium levels of occupational noise can significantly affect the physiological responses in view of the moderating factors. In total, the EDA and RR responses increased, whereas HR initially increased and then decreased. According to the regression models, it seems that medium levels of occupational noise have significant and linear effects on EDA, RR, and HR in levels >= 60 (CO), >= 65 (OPO), and >= 69 dB(A) (CR), respectively. Moreover, the levels range of 60-70 dB(A) (CO and OPO) can increase mean of cortisol level more than the levels range of 70-80 dB(A) (CR and IN).
机译：中等噪声水平在工作环境中是非常常见的，并且很少有研究则解决了它们的效果。本研究旨在探讨真实噪声水平从四种工作场所对心理生理反应的影响。招募了三十一位正常听力男性受试者。他们被要求判断四个职业环境的噪音烦恼（NA）和噪声引起的主观负载（NISL）涉及认知功能;封闭式办公室（有限公司：57.8-65.2 DB（A），开放式办公室（OPO：65-71.8 DB（A），控制室（CR：68.7-75 DB（A）和工业噪音（：75.5： 81 dB（a）。同时，在整个实验中监测电台活性（EDA），心率（HR）和呼吸率（RR）。在每次试验之前和之后也分析受试者的唾液皮质醇。结果是在使用线性和混合模型的噪声和调节因子的影响方面进行评估，每个反应发现剂量 - 反应关系。结果表明，NA评价26.5％，39.5％，53％和72.2％在CO，OPO，CR和中，分别增加了水平> = 65dB（A）（OPO）。除了主观效果之外，职业噪声的中等水平可能会显着影响生理反应更柔和的因素。总共，EDA和RR响应增加，而HR最初增加，然后减少。根据回归模型，似乎该中等职业噪声分别对EDA，RR和HR中的职业噪声显着且线性效应> = 60（CO），> = 65（OPO）和> = 69dB（A）（CR）。此外，60-70dB（A）（CO和OPO）的水平范围可以增加皮质醇水平的平均值超过70-80dB（A）（CR和IN）的水平。

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