瞬态睡眠阶段转移的瞬时变化对过往卡车噪音的反应。
Instantaneous change in transient shift of sleep stage in response to passing truck noise.
机构信息
Department of Public Health, Gunma University School of Medicine, Showa 3-39-22, 371-8511, Maebashi, Japan.
出版信息
Environ Health Prev Med. 1998 Apr;3(1):1-5. doi: 10.1007/BF02931231.
The transient effects of passing truck noise on sleep stage shift were examined in fifteen male students aged 19-21 years old for 7 to 11 non-consecutive nights. Shift percentage for proceeding from Stage 2 to shallower stages (Stage 1, waking or movement time) as well as that from Stages 3 to 2, Stage 1, waking or movement time were determined. Change in Stage REM by noise was examined for shift to other stages. The percentage for shallower stages from Stage 2 significantly increased by exposure to 45, 50, 55 and 60 dBA noise compared to the non-exposed control, though this was not observed in Stage REM. The percentage of shift to shallower stages from Stage 3 significantly increased at 50, 55 and 60 dBA noise compared to the control. The minimum effective sound level for the percentage of shift to shallower stages from Stage 2 by the passing truck noise was less than 45 dBA, while that for the percentage of change in Stage REM was greater than 60 dBA and that for the percentage of shift to shallower stages from Stage 3 by the noise was between 45 and 50 dBA. Responses to noise exposure in Stage REM was less sensitive than in Stage 3.
研究了 15 名 19-21 岁男性学生在 7-11 个非连续夜间经历卡车噪音通过时对睡眠阶段转移的短暂影响。确定了从第 2 阶段到较浅阶段（第 1 阶段，觉醒或运动时间）以及从第 3 阶段到第 2 阶段、第 1 阶段、觉醒或运动时间的转移百分比。通过噪音检查 REM 阶段向其他阶段的转移。与未暴露于控制组相比，暴露于 45、50、55 和 60 dBA 噪声后，第 2 阶段向较浅阶段的转移百分比显著增加，但 REM 阶段未观察到这种情况。与对照组相比，在 50、55 和 60 dBA 噪声下，第 3 阶段向较浅阶段的转移百分比显著增加。通过过往卡车噪音从第 2 阶段向较浅阶段转移的百分比的最小有效声级小于 45 dBA，而 REM 阶段的变化百分比大于 60 dBA，且噪音引起的从第 3 阶段向较浅阶段转移的百分比在 45 和 50 dBA 之间。与第 3 阶段相比，REM 阶段对噪声暴露的反应不那么敏感。
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