Multidimensional Human Responses Under Dynamic Spectra of Daylighting and Electric Lighting
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| Wydane w: | Buildings vol. 15, no. 13 (2025), p. 2184-2203 |
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| 1. autor: | |
| Kolejni autorzy: | , , , , |
| Wydane: |
MDPI AG
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| Hasła przedmiotowe: | |
| Dostęp online: | Citation/Abstract Full Text + Graphics Full Text - PDF |
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| 001 | 3229142389 | ||
| 003 | UK-CbPIL | ||
| 022 | |a 2075-5309 | ||
| 024 | 7 | |a 10.3390/buildings15132184 |2 doi | |
| 035 | |a 3229142389 | ||
| 045 | 2 | |b d20250701 |b d20250714 | |
| 084 | |a 231437 |2 nlm | ||
| 100 | 1 | |a Dong Yingjun |u College of Horticulture, China Agricultural University, Beijing 100193, China; 2024077@cau.edu.cn | |
| 245 | 1 | |a Multidimensional Human Responses Under Dynamic Spectra of Daylighting and Electric Lighting | |
| 260 | |b MDPI AG |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a The luminous environment, shaped by daylight and electric light, significantly influences visual performance, physiological responses, and perceptual experiences. While these light sources are often perceived as distinct due to their differing effects on occupants’ cognition and well-being, the underlying mechanisms remain unclear. Nine lighting conditions were evaluated, combining three spectral types—daylight (DL), conventional LED (CLED), and daylight LED (DLED)—with three horizontal illuminance levels (300 lx, 500 lx, and 1000 lx). Twelve healthy subjects completed visual performance tasks (2-back working memory test), physiological measurements (heart rate variability and critical flicker frequency), and subjective evaluations. The results revealed that 500 lx consistently yielded the most favorable outcomes: 2-back task response speed improved by 6.2% over 300 lx and 1000 lx, and the critical flicker frequency difference was smallest, indicating reduced fatigue. DLED lighting achieved cognitive and physiological levels comparable to daylight. Heart rate variability analyzes further confirmed higher alertness levels under 500 lx DLED lighting (LF/HF = 3.31). Subjective ratings corroborated these findings, with perceived alertness and comfort highest under DLED and 500 lx conditions. These results demonstrate that DLED, which offers a balanced spectral composition and improved uniformity, may serve as an effective lighting configuration for supporting both visual and non-visual performance in indoor settings lacking daylight. | |
| 653 | |a Physiology | ||
| 653 | |a Visual tasks | ||
| 653 | |a Memory tasks | ||
| 653 | |a Lighting systems | ||
| 653 | |a Sleep | ||
| 653 | |a Light sources | ||
| 653 | |a Spectral composition | ||
| 653 | |a Heart rate | ||
| 653 | |a Cognition | ||
| 653 | |a Light emitting diodes | ||
| 653 | |a Adaptation | ||
| 653 | |a Lighting | ||
| 653 | |a Photoreceptors | ||
| 653 | |a Cognitive ability | ||
| 653 | |a Flicker | ||
| 653 | |a Daylighting | ||
| 653 | |a Physiological responses | ||
| 653 | |a Special effects | ||
| 653 | |a Alertness | ||
| 653 | |a Biological clocks | ||
| 653 | |a Melatonin | ||
| 653 | |a Illuminance | ||
| 653 | |a Nervous system | ||
| 653 | |a Circadian rhythm | ||
| 653 | |a Daylight | ||
| 700 | 1 | |a Wu Guiyi |u Real Estate Development Co., Ltd., China Railway 22nd Bureau Group, Beijing 100041, China; wuguiyi.22g@crcc.cn | |
| 700 | 1 | |a Shi, Jiaxin |u Beijing Key Laboratory of Green Building Environment and Energy Saving Technology, Beijing University of Technology, Beijing 100124, China; shijx911@163.com | |
| 700 | 1 | |a Liang Qingxuan |u Logistics Service Center of the Chinese Academy of Forestry, Chinese Academy of Forestry, Beijing 100091, China; liangqingxuan0122@163.com | |
| 700 | 1 | |a Cui Zhipeng |u School of Urban Economics and Management, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; cuizhipeng@bucea.edu.cn | |
| 700 | 1 | |a Xue Peng |u Beijing Key Laboratory of Green Building Environment and Energy Saving Technology, Beijing University of Technology, Beijing 100124, China; shijx911@163.com | |
| 773 | 0 | |t Buildings |g vol. 15, no. 13 (2025), p. 2184-2203 | |
| 786 | 0 | |d ProQuest |t Engineering Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3229142389/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text + Graphics |u https://www.proquest.com/docview/3229142389/fulltextwithgraphics/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3229142389/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |