The DOI matches its Crossref record; 35 of the 37 references it cites were found in a registry or an index.
Office lighting and personal light exposures in two seasons: Impact on sleep and mood
Abstract
Lighting design for office buildings has focused largely on providing sufficient light for visual performance, minimal glare, good colour rendering and energy conservation. Little attention has been given to understanding how light affects the non-visual systems, including circadian regulation that affects sleep and mood. Circadian light–dark and activity–rest patterns of individuals working in a building designed to provide daylight availability in the space were obtained in winter and summer. Measures of objective and subjective sleep and self-reports of mood were also obtained from participants. Results show a significant increase in light exposure during summer. Sleep quantity and quality were also significantly higher in summer than in winter. Strategies to increase circadian light exposures in buildings should be a consideration in architectural design.
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“Studies indicate that low levels of illumination are sufficient to trigger awakening and there are hints that the effect on circadian rhythm gets saturated at high illumination levels 38, 39.”
From The inner clock-Blue light sets the human rhythm (2019) · cites this paper as [38]
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“…studies of circadian-effective illumination, day-time light levels of roughly 1,000 – 2,000 lux at eye level are considered bene fi cial for maintaining circadian alignment, while nighttime exposure should ideally remain below 10 lux to minimize melatonin suppression (Figueiro & Rea, 2014).”
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Metadata
- Authors
- Figueiro, M., & Rea, M.
- Affiliations
- Lighting Research Center, Rensselaer Polytechnic Institute, Troy, NY, USA
- Venue
- Lighting Research & Technology
- Publisher
- SAGE Publications
- Published
- 2014-12-19
- Volume
- 48
- Issue
- 3
- Pages
- 352-364
- ISSN
- 0024-3426 (ISSN-L)
- 1477-1535
- 1477-0938
- OpenAlex
- W2328375817
- Cited by
- 131
- References
- 37
- Citations by year
- 2026: 4 · 2025: 13 · 2024: 13 · 2023: 17 · 2022: 12 · 2021: 24 · 2020: 13 · 2019: 18 · 2018: 7 · 2017: 3 · 2016: 3 · 2015: 2
- FWCI
- 1.30
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Lighting Research & Technology (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Physical Sciences › Engineering › Building and Construction › Building Energy and Comfort Optimization
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Keywords
- office lighting, circadian lighting, non-visual effects of light, sleep quality, mood, seasonal variation, daylight availability, circadian rhythm, architectural lighting design, visual comfort
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