The Impact of Lighting Conditions on Users' Alertness and Working Memory in Confined Spaces.

IF 1.3 4区 心理学 Q3 PSYCHOLOGY, MULTIDISCIPLINARY
PsyCh journal Pub Date : 2025-06-10 DOI:10.1002/pchj.70022
Zaoyi Sun, Shenshen Xie, Shang Hu, Changhua Jiang, Shaowen Ding, Litao Wu, Weidan Xu, Hongting Li
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Abstract

Confined spaces, characterized by limited natural ventilation, the absence of windows, and restricted access to natural light, present distinct challenges. While most studies focus on lighting's effect on sleep, confined spaces are now more often used for short-term work-rest cycles, especially in office settings. This study explores how lighting conditions affect alertness, cognitive performance, and physiological metrics such as heart rate variability (HRV) during work-rest cycles in confined spaces. Participants performed 2-back tasks, psychomotor vigilance tasks (PVT), and completed subjective scales under six lighting conditions, combining two levels of illuminance (300, 500 lx) and three color temperatures (2800, 5000, 6500 K). Results show higher subjective alertness during work with 300 lx and 5000 K. However, lighting conditions did not significantly affect subjective alertness during rest. Objective alertness was better at 300 lx, with 2800 outperforming 5000 K. Working memory accuracy was higher at 5000 compared with 6500 K, and reaction times were faster under 300 lx. Physiological data remained consistent across lighting conditions. These findings can inform future lighting design and management in confined spaces to improve comfort and efficiency.

密闭空间中光照条件对使用者警觉性和工作记忆的影响。
密闭空间的特点是自然通风有限,没有窗户,自然采光受限,这给建筑带来了明显的挑战。虽然大多数研究关注的是照明对睡眠的影响,但密闭空间现在更多地用于短期工作-休息周期,尤其是在办公室环境中。本研究探讨了在密闭空间工作-休息周期中,照明条件如何影响警觉性、认知表现和心率变异性(HRV)等生理指标。在两种照度(300、500 lx)和三种色温(2800、5000、6500 K)的六种照明条件下,参与者分别完成了两背任务、精神运动警戒任务(PVT)和主观量表。结果表明,300 lx和5000 K时工作时主观警觉性较高。然而,光照条件对休息时的主观警觉性没有显著影响。客观警觉性在300 lx时更好,2800 lx优于5000 K。工作记忆准确率在5000 K时高于6500 K,反应速度在300 lx时更快。生理数据在不同光照条件下保持一致。这些发现可以为未来密闭空间的照明设计和管理提供参考,以提高舒适度和效率。
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
PsyCh journal
PsyCh journal PSYCHOLOGY, MULTIDISCIPLINARY-
CiteScore
2.70
自引率
12.50%
发文量
109
期刊介绍: PsyCh Journal, China''s first international psychology journal, publishes peer‑reviewed research articles, research reports and integrated research reviews spanning the entire spectrum of scientific psychology and its applications. PsyCh Journal is the flagship journal of the Institute of Psychology, Chinese Academy of Sciences – the only national psychology research institute in China – and reflects the high research standards of the nation. Launched in 2012, PsyCh Journal is devoted to the publication of advanced research exploring basic mechanisms of the human mind and behavior, and delivering scientific knowledge to enhance understanding of culture and society. Towards that broader goal, the Journal will provide a forum for academic exchange and a “knowledge bridge” between China and the World by showcasing high-quality, cutting-edge research related to the science and practice of psychology both within and outside of China. PsyCh Journal features original articles of both empirical and theoretical research in scientific psychology and interdisciplinary sciences, across all levels, from molecular, cellular and system, to individual, group and society. The Journal also publishes evaluative and integrative review papers on any significant research contribution in any area of scientific psychology
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