Smith D G, Baranski J V, Thompson M M, Abel S M
Defence Research and Development Canada-Toronto, Ontario M3M 3B9, Canada.
Noise Health. 2003 Oct-Dec;6(21):3-16.
A total of twenty-five subjects were cloistered for a period of 70 hours, five at a time, in a hyperbaric chamber modified to simulate the conditions aboard the International Space Station (ISS). A recording of 72 dBA background noise from the ISS service module was used to simulate noise conditions on the ISS. Two groups experienced the background noise throughout the experiment, two other groups experienced the noise only during the day, and one control group was cloistered in a quiet environment. All subjects completed a battery of cognitive tests nine times throughout the experiment. The data showed little or no effect of noise on reasoning, perceptual decision-making, memory, vigilance, mood, or subjective indices of fatigue. Our results suggest that the level of noise on the space station should not affect cognitive performance, at least over a period of several days.
总共25名受试者被隔离在一个经过改装以模拟国际空间站（ISS）条件的高压舱内70小时，每次5人。使用来自国际空间站服务舱的72分贝背景噪音录音来模拟国际空间站上的噪音条件。两组在整个实验过程中都经历背景噪音，另外两组只在白天经历噪音，还有一个对照组被隔离在安静的环境中。所有受试者在整个实验过程中完成了九次一系列认知测试。数据显示，噪音对推理、感知决策、记忆、警觉性、情绪或疲劳主观指标几乎没有影响。我们的结果表明，空间站上的噪音水平至少在几天内不应影响认知表现。
