随机试验揭示了对人为光色温的偏好和荷尔蒙反应之间的不匹配
Solène Guenat1, Jörg Haller2, Nicole Bauer1
1Social Sciences in Landscape Research, Economics and Social Sciences, Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland.
PloS one
|August 11, 2025
概括
街灯的颜色温度会影响感知,更温暖的灯光更好. 虽然没有影响情绪或感知到的安全性,但较冷的灯光 (6500K) 与较温暖的灯光 (2700K) 相比,在生理压力方面显示出更大的减少.
科学领域:
- 环境科学环境科学
- 人类健康 人类健康 人类健康
- 照明技术 照明技术
背景情况:
- 街灯提高了安全性,但对健康和环境产生了负面影响.
- 优化路灯特性,如颜色温度,可以减轻不良影响.
- 关于光色温度对人类福祉的影响的理解有限.
研究的目的:
- 研究LED路灯颜色温度 (2700K,4000K,6500K) 对感知到的光质,安全和幸福感的影响.
- 评估对情绪,自我报告的压力和生理压力的影响 (皮质醇水平).
主要方法:
- 在瑞士的一个城镇,与77名成年参与者进行了一项并行组实地实验.
- 参与者被随机分配到三个受控的LED路灯条件之一 (2700K,4000K或6500K).
- 收集的数据包括主观印象,安全感,情感,自我报告的压力和唾液皮质醇水平.
主要成果:
- 参与者报告说,与较冷的 (4000K, 6500K) 相比,更温暖的光温度 (2700K) 的印象更为有利.
- 在不同的光温度之间,在影响,安全感或自我报告的压力方面没有发现显著差异.
- 与2700K光相比,在6500K光下观察到皮质醇水平的较强下降,这表明生理压力减少.
结论:
- 较温暖的路灯温度是首选的,与夜间期望保持一致.
- 较冷,与白天相似的光温度 (6500K) 可能提供减轻生理压力的好处.
- 在路灯设计中,平衡美学偏好与不同光温对健康的潜在益处对于路灯设计至关重要.
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