Griefahn B, Jansen G
Sci Total Environ. 1975 May;4(1):107-12. doi: 10.1016/0048-9697(75)90018-2.
After a pilot study (2 subjects, 19 nights) we tested two different subjects during 57 nights, administering sonic booms (1 mb, 300 ms; sound level of sonic boom in the bedroom 80-85 dB (A) and recording EEG and peripheral blood volume. After 7 nights without noise, 30 nights with either 2 or 4 sonic booms (alternately) were applied. After 10 more nights without noise, four nights with 8 and 16 bangs followed alternately. The last 6 nights were used as a comparison phase. Results showed that distrubance was obvious during all periods of noise. No adaptation could be observed during any of the experiments. On the contrary, during the night with 4 bangs there was a tendency for compensation, e.g., in the last two thirds of nights with 4 bangs, the total time of deep sleep was comparable with the nights without any noise.
在一项试点研究（2名受试者，19个夜晚）之后，我们在57个夜晚对另外两名不同的受试者进行了测试，施加声爆（1毫巴，300毫秒；卧室中的声爆声级为80 - 85分贝（A））并记录脑电图和外周血容量。在无噪音的7个夜晚后，交替施加2次或4次声爆，共30个夜晚。在又经过10个无噪音的夜晚后，交替进行4个夜晚的8次和16次巨响。最后6个夜晚用作对照阶段。结果表明，在所有噪音期间干扰都很明显。在任何实验中都未观察到适应现象。相反，在有4次巨响的夜晚，存在一种补偿趋势，例如，在有4次巨响的夜晚的最后三分之二时间里，深度睡眠的总时长与无任何噪音的夜晚相当。
