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A laboratory experiment on very low frequency sounds effects

机译：极低频声音效果的实验室实验

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Field and laboratory studies on the psychological and physiological effects of very low frequency noise on humans are being carried out in order to define limits for health hazard. The specific aims of this laboratory work were to determine: (l) differences, if any, in the performance of 2l normal hearing students in a series of psychological and physiological parameters, measured under three different experimental conditions (exposure to a l0Hz @ ll0 dB tone, exposure to a boiler noise filtered in l/3 octave band centered on l0Hz @ l05 ± 2 dB, and without sound exposure) and (2) whether anxiety and hearing threshold variables influenced those responses. Results showed certain differences in the body responnces and subjective judgements, between the exposure to the stimuli conditions and control condition. There were neither changes nor differences in the subjects performances of the phy- siological variables. Anxiety seems to have influenced some of the subjective judgements.
机译：为了确定健康危害的极限，正在进行关于极低频噪声对人类的心理和生理影响的现场和实验室研究。这项实验室工作的具体目的是确定：（l）在三种不同的实验条件下（暴露于10Hz @ ll0 dB时）测得的2l正常听力学生在一系列心理和生理参数方面的表现是否存在差异。音，暴露在以l0Hz @ 10±2 dB为中心的l / 3倍频程带过滤的锅炉噪声中，并且没有声音暴露）和（2）焦虑和听力阈值变量是否影响了这些响应。结果表明，在刺激条件和控制条件下，人体反应和主观判断存在一定差异。生理变量的受试者表现既没有变化也没有差异。焦虑似乎影响了一些主观判断。

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