Abstract
Numerous studies have shown that lighting conditions have a significant impact on people's satisfaction, health, and performance. With the current interest in healthy lighting gradually increasing, more and more researchers have begun to study the effects of light on comfort, cognitive performance, and physiological health. This paper seeks to summarize the effects of lighting conditions on subjective comfort, physiological indicators, and cognitive performance. This review collected studies on the effects of indoor lighting (mainly in schools and offices) on comfort, cognitive performance, and physiological health from 2000 to the present, with a focus on the role of illuminance and correlated color temperature. The screening process yielded 122 papers that met the criteria. Firstly, the literature was categorized according to light elements and briefly introduced in terms of task type and experimental settings. Then, the relationships between different light environments and subjective comfort, physiological indicators and cognitive performance were summarized and compared. This paper finds that subjective comfort evaluations improve with higher illuminance and correlated color temperatures. However, this improvement does not result in a linear increase in visual comfort. Cognitive performance also appears to improve with higher illuminance and higher correlated color temperature. The human body produces a range of neurophysiological responses as a result of light, which are characterized by melatonin, skin temperature, heart rate, brain waves, and other physiological indicators. This paper proposed potential research and development directions to address the limitations of current existing studies. This paper provides theoretical support for improving people's visual comfort and cognitive performance, as well as a reference for the design of the same type of experimental research.
Published Version
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