Anhui Province Key Laboratory of Intelligent Building and Building Energy Saving, Anhui Jianzhu University, Hefei 230022, China.
School of Electronic and Information Engineering, Anhui Jianzhu University, Hefei 230601, China.
Int J Environ Res Public Health. 2020 Apr 8;17(7):2537. doi: 10.3390/ijerph17072537.
Lighting condition is essential to human performance. With the widespread use of computer-based learning, the performance measurements become difficult, and the effects of artificial lighting conditions towards the new learning forms are not investigated extensively. The current study conducts a subject-within experiment with a 45-min-long online learning along with electroencephalogram (EEG)-based measurements, and a post-interview under five lighting setups respectively (300 lx, 3000 K; 300 lx, 4000 K; 300 lx, 6500 K; 500 lx, 4000 K; 1000 lx, 4000 K). Attention is chosen as the key factor to represent the learning performance. The results show that the attention of people aged in the 20s is not affected by the experimental lighting conditions. The results also demonstrate that people in high illumination at 1000 lx are more inclined to sustain attention despite the discomfort and dissatisfaction. Taking the EEG-based attention measurements and post-interview answers into consideration, lighting conditions at 300 lx, 4000 K are the recommended set points for university architectures among the investigated conditions, providing a practical basis when adjusting the lighting standard for its advantage in energy saving.
照明条件对人类表现至关重要。随着基于计算机的学习的广泛应用，性能测量变得更加困难，并且人工照明条件对新学习形式的影响尚未得到广泛研究。本研究通过一项 45 分钟的在线学习和基于脑电图（EEG）的测量，以及在五种不同照明设置下的后续访谈（分别为 300 lx、3000 K；300 lx、4000 K；300 lx、6500 K；500 lx、4000 K；1000 lx、4000 K）进行了一项主体内实验。选择注意力作为代表学习表现的关键因素。结果表明，20 多岁人群的注意力不受实验照明条件的影响。结果还表明，尽管感到不适和不满，在 1000 lx 的高照度下的人更倾向于保持注意力。考虑到基于 EEG 的注意力测量和访谈后的答案，在调查条件中，300 lx、4000 K 的照明条件是大学建筑的推荐设定点，为调整照明标准以节省能源提供了实际依据，因为其具有优势。
