摘要
本实验研究了照明对警觉性与舒适度的影响。实验使用全面的评价体系,包括主观量表(疲劳问卷、主观睡意、灯光评价)、生理监测(心电、眼电、脑电、CFF)、工作表现数据统计和生理化学指标,来探究色温随时间变化的动态光是否优于照度相同、平均色温相同的静态光。本研究共分成了两个实验。10位被试者参与了此次研究。实验1包含四种光照环境:6 000 K静态光、9 000 K静态光、变化周期为4小时且平均色温为9 000 K的长周期动态光和变化周期为2小时且平均色温为9 000 K的短周期动态光。结果显示被试者在两种动态光内的脑电显著优于静态光下。实验2依据实验1的结果而设计,包含六种光环境:色温变化范围4 000 K^10 000 K,变化频率分别为2 h,1 h,0.5 h的动态光,以及色温变化范围6 000 K^12 000 K,变化频率分别为2 h,1 h,0.5 h的动态光。结果表明高色温,高频率的动态光环境更容易让人警觉。结果亦了解各种的评价系统对健康光源的研究的有效性。
Two experiments were conducted to investigate the impact of light on human alertness and task performance. A wide range of measurement systems was used including questionnaires （fatigue questionnaires, sleeping scale （KSS） and light atmosphere and appearance）, physiological method （ECG, EOG, EEG, CFF） , task performance and biochemical method. Ten participants took part in this study. Experiment 1 included 4 phases of lighting condition, i. e. 6 000 K static light, 9 000 K static light, and CCT range of 6 000 to 12 000 K at cycle of 4 and 2 hour, respectively. The result showed that higher CCTs were more effective than lower CCTs and dynamic light performed better than static light and high frequency was more obvious than low frequency light on generating a higher alertness. Experiment 2 had 6 phases including 2 ranges and 3 frequencies of CCT, i.e. from 4 000 K to 10 000 K and from 6 000 K to 12 000 K, each at cycle of 2 h, 1 h, 0.5 h. The results indicated that a higher CCT range and a higher CCT frequency was better on generating a higher alertness. The results also indicated which measurement method to be more effective to measure human alertness and human performance.
作者
罗明
郑诗琪
叶鸣
LUO Ming ZHENG Shiqi YE Ming(Zhejiang University, Hangzhou 310000, China)
出处
《照明工程学报》
2016年第6期1-5,共5页
China Illuminating Engineering Journal
关键词
动态光
警觉度
表现
脑电
褪黑素
alertness
dynamic light
performance
EEG
melatonin
