Abstract This study aims to deliver an ambient lighting control scenario that helps to maintain circadian entrainment as much as possible while supporting the cognitive performance of students. Two empirical studies were conducted. The first was a visual experiment to identify a setting that would provide smooth control of the lighting color temperature, taking into account the visual sensitivity of the human eye. Based on the results, a color temperature reduction from a 6500 K blue-enriched white light to a 5000 K neutral white light at a rate of 5 K/s was suggested. The second experiment investigated the effects of the suggested lighting transition on different aspects of students’ performance, comparing the controlled (blue-enriched white to neutral white light), constant (neutral white light), and lights-off conditions. The level of concentration and arousal, as measured by brain and heart activity, respectively, was highest with the controlled lighting scenario. However, these effects were not reflected in the subjective assessments and the n-back task score. Taken together, the results demonstrated that a gradual lighting transition in which the blue-enriched white light changes into neutral white light could be beneficial in an educational context. Although there is still much to be learned about ambient lighting control, the results of this study may inspire and inform architects and designers, thereby facilitating the creation of better learning environments.

中文翻译：

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从富含蓝色的光逐渐过渡到中性白光，以创造一个支持性的学习环境

摘要 本研究旨在提供一种环境照明控制方案，有助于尽可能保持昼夜节律，同时支持学生的认知表现。进行了两项实证研究。第一个是视觉实验，以识别可以平滑控制照明色温的设置，同时考虑到人眼的视觉敏感性。根据结果​​，建议将色温从 6500 K 的富含蓝色的白光以 5 K/s 的速率降低到 5000 K 的中性白光。第二个实验调查了建议的照明过渡对学生表现的不同方面的影响，比较了受控（富含蓝色的白光到中性白光）、恒定（中性白光）和熄灯条件。分别通过大脑和心脏活动测量的注意力和觉醒水平在受控照明场景中最高。然而，这些影响并未反映在主观评估和 n-back 任务分数中。总之，结果表明，在教育环境中，将富含蓝色的白光变为中性白光的逐渐照明过渡可能是有益的。尽管关于环境照明控制还有很多需要学习的地方，但这项研究的结果可能会启发建筑师和设计师并为其提供信息，从而促进创造更好的学习环境。这些影响没有反映在主观评估和 n-back 任务分数中。总之，结果表明，在教育环境中，将富含蓝色的白光变为中性白光的逐渐照明过渡可能是有益的。尽管关于环境照明控制还有很多需要学习的地方，但这项研究的结果可能会启发建筑师和设计师并为其提供信息，从而促进创造更好的学习环境。这些影响没有反映在主观评估和 n-back 任务分数中。总之，结果表明，在教育环境中，将富含蓝色的白光变为中性白光的逐渐照明过渡可能是有益的。尽管关于环境照明控制还有很多需要学习的地方，但这项研究的结果可能会启发建筑师和设计师并为其提供信息，从而促进创造更好的学习环境。