Effects of outdoor lighting on judgements of emotion and gaze direction
Effects of outdoor lighting on judgements of emotion and gaze direction
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DOI：
10.1177/1477153513510311
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发表时间：
2015-05-01
影响因子：
2.5
通讯作者：
Cheal, C.
中科院分区：
文献类型：
--
作者：
Fotios, S.;Yang, B.;Cheal, C.
住宅区道路的道路照明应增强对其他行人的明显意图（友好、攻击性或冷漠）的人际判断的视觉成分。本实验在18种灯型、亮度和人与人之间距离的组合条件下，收集了1000 ms曝光后被试对情绪和注视方向的强迫选择判断。更好的性能被发现与更高的亮度和更大的任务大小，但收益递减根据高原悬崖的关系。结果被用来估计户外照明的适当光照水平。从面部表情判断情绪的结果表明，在4 m处准确识别面部表情的最小面部亮度为0.1-1.0cd/m（2），而在10 m处识别面部表情的最小面部亮度为1.0cd/m（2）以上。
Road lighting in residential roads should enhance the visual component of interpersonal judgements concerning the apparent intent of other pedestrians - whether friendly, aggressive or indifferent. This paper describes an experiment which collected forced-choice judgements of emotion and gaze direction after 1000ms exposure under 18 combinations of lamp type, luminance and interpersonal distances. Better performance was found with higher luminance and larger task size, but with diminishing returns according to a plateau-escarpment relationship. The results were used to estimate appropriate light levels for outdoor lighting. Results for judgements of emotion from facial expression suggest a minimum luminance of the face of 0.1-1.0cd/m(2) if facial expressions are to be identified accurately at 4m, but a luminance above 1.0cd/m(2) for identification at 10m.