Light & Engineering 33 (1) 2025

Volume 33 (1)
Date of publication 02/20/2025
Pages 82–87

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Effects of Dynamic Coloured Lighting on Mood of Occupants During the Antarctic Polar Night L&E, Vol.33, No.1, 2025

Articles authors:

Yanni Wang, Tongyue Wang, Li Wei, Luoxi Hao

Yanni Wang, postgraduate student. She is actively pursuing her Doctorate’s Degree studies in School of Architecture and Urban Planning, Tongji University, with a primary research focus on impact of lighting on the health of occupants in Antarctic

Tongyue Wang, Ph. D. He holds a Doctor of Engineering in Architecture from Tongji University. He has long been engaged in research on architectural lighting, healthy lighting design and application in hospitals and elderly buildings. Now, he is a postdoctoral researcher in the School of Medicine of Tongji University

Li Wei, postgraduate student. He is actively pursuing his Doctorate’s Degree studies in School of Architecture and Urban Planning, Tongji University, with a primary research focus on Antarctic human factors healthy lighting. He is also a Chinese Antarctic Research Expedition member

Luoxi Hao, Ph. D., Professor, serves as the CIE Vice-President Education for the year from 2023 to 2027, and she is the member of ISC China Committee, Vice President of China Illuminating Engineering Society. She has published over 140 papers on key journals. Now, she is a tenured Professor and doctoral supervisor in Tongi University

Abstract:

The prolonged darkness and monotonous environmental colours exert detrimental effects on mood during the Antarctic night. The dynamic coloured lighting (DCL) experiment was conducted at the beginning, middle, and end nodes of the polar night in the Antarctic Health Cabin, where ECG signals, Semantic Differential Scale (SD), and Self-Assessment Manikin (SAM) were collected. The results indicated that as polar night time increased, Heart Rate Variability (HRV) in DCL1 conditions of illumination exhibited a decreasing trend while it initially increased and then decreased in DCL2 illumination conditions. Subjective evaluations of both lighting patterns were positive. In DCL1, pleasure at the end of polar night was significantly better than in the middle (P<0.05), and arousal levels at both middle and end nodes were significantly higher compared to it at the beginning of polar night (P<0.05). In DCL2, pleasure was significantly higher at the beginning than in the middle of polar night (P<0.05). This study revealed the potential impact of dynamic coloured lighting on enhancing the emotional well-being of the Antarctic Research Expedition during the polar night.

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Keywords

DOI: https://doi.org/10.33383/2024-056

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