Kawada T, Suzuki S
Ind Health. 1993;31(1):35-8. doi: 10.2486/indhealth.31.35.
The effects of 60 dB (A) steady pink noise on sleep induction were studied. Two experiments were conducted. First, 10 night-sleep polygrams of a young male subject were recorded consecutively as controls. Five night polygrams of the same subject were then recorded with exposure to steady 60 dB (A) pink noise. Second, polygrams of four students were recorded using the same noise exposure as in the first experiment. Polygrams for the control night were also recorded. Noise exposure tended to shorten sleep latency, i.e., the values were 4.2 and 9.5 min in the first and second experiment, respectively. The steady 60 dB (A) noise made sleep induction easier.
研究了60分贝（A）稳定粉红噪声对睡眠诱导的影响。进行了两项实验。首先，连续记录一名年轻男性受试者的10份夜间睡眠脑电图作为对照。然后，在该受试者暴露于稳定的60分贝（A）粉红噪声的情况下记录其5份夜间脑电图。其次，对4名学生使用与第一个实验相同的噪声暴露来记录脑电图。同时也记录了对照夜晚的脑电图。噪声暴露倾向于缩短睡眠潜伏期，即在第一个和第二个实验中，该值分别为4.2分钟和9.5分钟。稳定的60分贝（A）噪声使睡眠诱导更容易。
