Time-Dependent Effects of Altered Prebedtime Light Exposure in Enclosed Spaces on Sleep Performance Associated with Human States.

IF 3 2区医学 Q2 CLINICAL NEUROLOGY

Nature and Science of Sleep Pub Date : 2024-08-06 eCollection Date: 2024-01-01 DOI:10.2147/NSS.S472988

Jianghao Xiao, Dengkai Chen, Suihuai Yu, Hui Wang, Yiwei Sun, Hanyu Wang, Zhiming Gou, Jingping Wang

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引用次数: 0

Abstract

Purpose: Exposure to artificial light influences human performance, which is essential for maintaining healthy work and sleep. However, existing research has not explored the intrinsic links between sleep performance and human states over time under prebedtime light exposure interventions (LEIs).

Methods: To investigate the time-dependent effects of altered prebedtime light exposure, four LEI groupings (#L1 - #L4) and a Time factor (D8, D9, and D10) were chosen for sleep experiments in enclosed spaces. Forty-eight young adults recruited were available for data analysis. Subjective alertness (SA), negative affect (NA), subjective sleep, and objective sleep were measured via the Karolinska Sleepiness Scale, Positive and Negative Affect Schedule, Next-day Self-assessment Sleep Quality, and joint assessment of wrist actigraphy and sleep diaries, respectively. Statistical analysis was used for the effects of light exposure on the human states (corresponding to the SA and NA) and sleep performance, while the process model helped construct the associations between the two.

Results: The statistical effects revealed that the Time had a significant main effect on subjective sleep and changes in prebedtime alertness; the LEI had a significant main effect only on sleep onset latency (SOL). After undergoing altered prebedtime light exposure, the mean SA increased at prebedtime of D9 (p = 0.022) and D10 (p = 0.044); No significant effect on the NA was observed; Mean subjective sleep had a significant increase from D8 to D10. Moreover, five actigraphy-estimated sleep parameters were interrelated. In light of this, a chained pathway relationship was identified. The SOL played a mediating predictor between prebedtime state and objective sleep, which was linked to the awakening state through subjective sleep.

Conclusion: Our study suggests that time-dependent effects of altered prebedtime light exposure on sleep performance are associated with human states at prebedtime and awakening, with implications for its prediction of sleep health.

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封闭空间中改变睡前光照对与人类状态相关的睡眠表现的时间依赖性影响

目的：人工光照会影响人类的工作表现，这对保持健康的工作和睡眠至关重要。然而，现有研究尚未探讨在床前光照干预（LEIs）下，睡眠表现与人体状态随时间变化的内在联系：为了研究床前光照改变对时间的影响，我们选择了四个 LEI 组别（#L1 - #L4）和一个时间因子（D8、D9 和 D10）在封闭空间中进行睡眠实验。招募的 48 名年轻人可用于数据分析。主观警觉性（SA）、消极情绪（NA）、主观睡眠和客观睡眠分别通过卡罗林斯卡嗜睡量表、积极和消极情绪表、次日睡眠质量自我评估以及腕式动觉仪和睡眠日记的联合评估进行测量。统计分析用于研究光照对人体状态（对应于SA和NA）和睡眠表现的影响，而过程模型则有助于构建两者之间的关联：统计效果显示，时间对主观睡眠和睡前警觉性的变化具有显著的主效应；LEI仅对睡眠开始潜伏期（SOL）具有显著的主效应。在改变了床前光照后，D9（p = 0.022）和 D10（p = 0.044）的床前平均警觉度（SA）增加了；对 NA 没有观察到显著影响；从 D8 到 D10，平均主观睡眠显著增加。此外，五种动图估计的睡眠参数相互关联。有鉴于此，我们确定了一种链式路径关系。SOL在睡前状态和客观睡眠之间起着中介预测作用，而客观睡眠又通过主观睡眠与觉醒状态相关联：我们的研究表明，床前光照改变对睡眠表现的影响与时间相关，与人在床前和觉醒时的状态有关，这对预测睡眠健康状况具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature and Science of Sleep Neuroscience-Behavioral Neuroscience

CiteScore

5.70

自引率

5.90%

发文量

245

审稿时长

16 weeks

期刊介绍： Nature and Science of Sleep is an international, peer-reviewed, open access journal covering all aspects of sleep science and sleep medicine, including the neurophysiology and functions of sleep, the genetics of sleep, sleep and society, biological rhythms, dreaming, sleep disorders and therapy, and strategies to optimize healthy sleep. Specific topics covered in the journal include: The functions of sleep in humans and other animals Physiological and neurophysiological changes with sleep The genetics of sleep and sleep differences The neurotransmitters, receptors and pathways involved in controlling both sleep and wakefulness Behavioral and pharmacological interventions aimed at improving sleep, and improving wakefulness Sleep changes with development and with age Sleep and reproduction (e.g., changes across the menstrual cycle, with pregnancy and menopause) The science and nature of dreams Sleep disorders Impact of sleep and sleep disorders on health, daytime function and quality of life Sleep problems secondary to clinical disorders Interaction of society with sleep (e.g., consequences of shift work, occupational health, public health) The microbiome and sleep Chronotherapy Impact of circadian rhythms on sleep, physiology, cognition and health Mechanisms controlling circadian rhythms, centrally and peripherally Impact of circadian rhythm disruptions (including night shift work, jet lag and social jet lag) on sleep, physiology, cognition and health Behavioral and pharmacological interventions aimed at reducing adverse effects of circadian-related sleep disruption Assessment of technologies and biomarkers for measuring sleep and/or circadian rhythms Epigenetic markers of sleep or circadian disruption.