Fruhstorfer B, Fruhstorfer H, Grass P
Eur J Appl Physiol Occup Physiol. 1984;53(2):159-63. doi: 10.1007/BF00422580.
The effects of daytime noise on recovery processes during subsequent undisturbed night sleep were studied in six healthy men (21-27 years), exposed to 80 dB (A) pink noise 8 h per day for 2 days. Sleep EEG, ECG, and respiration were recorded in the laboratory for five consecutive nights: two baseline nights, two nights following noise stimulation, and again one baseline night. Additionally questionnaire data were collected, reflecting a subjective impairment of the recovery function of sleep after noise exposure. EEG sleep data of the first post-noise night showed an increase in slow wave sleep with a simultaneous decrease in stage 2 sleep. During the second post-noise night these changes were less prominent. Three subjects additionally showed an instability in the sleep course coinciding with elevated heart and respiration rates. However, altogether the autonomic parameters were not clearly affected by the noise exposure. The findings support the assumption that strong daytime noise may interfere with subsequent sleep processes.
在6名健康男性（21 - 27岁）中研究了白天噪音对随后安静夜间睡眠恢复过程的影响，他们每天暴露于80分贝（A）的粉红噪音中8小时，持续2天。在实验室连续五个晚上记录睡眠脑电图、心电图和呼吸情况：两个基线夜晚、噪音刺激后的两个夜晚以及再一个基线夜晚。此外，还收集了问卷数据，反映噪音暴露后睡眠恢复功能的主观损害。噪音暴露后第一个夜晚的脑电图睡眠数据显示慢波睡眠增加，同时第二阶段睡眠减少。在噪音暴露后的第二个夜晚，这些变化不那么明显。三名受试者还表现出睡眠过程不稳定，同时心率和呼吸频率升高。然而，总体而言，自主神经参数并未受到噪音暴露的明显影响。这些发现支持了这样一种假设，即强烈的白天噪音可能会干扰随后的睡眠过程。
