The impact of different intensity light exposure on cognitive ability of college students

Most studies on the impact of light exposure on human cognition have limited data collection at the subjective cognitive level to basic information collection such as Psychomotor Vigilance Test(PVT) and Karolinska Sleepiness Scale(KSS) , and there are few studies on college stu- dents as experimental participants. This study explores the impact of different lighting environ- ments on college students’ cognitive performance. 20 experimental participants experienced three different lighting environments: dark light (5lx), dim light (50lx), and bright light (1500lx) in a specific environment, and completed four Digit Span Test, Wisconsin Card Sorting Test, Stroop Test, and Trail Making Test Cognitive test and an reading comprehension test, PVT and KSS tests were completed before and after the entire experimental process.And we collected saliva samples from experimental participants after light exposure to measure melatonin concentrations.

多数关于光照对人类认知影响的研究，在主观认知层面的数据收集均限于基本信息搜集，例如心理运动警觉测试（PVT）及卡罗林斯卡嗜睡量表（KSS），且针对大学生作为实验参与者的研究为数甚少。本研究旨在探究不同光照环境对大学生认知表现的影响。20名实验参与者经历了三种不同的光照环境：暗光（5lx）、昏暗光（50lx）及明亮光（1500lx），在特定环境下完成了数字广度测试、威斯康星卡片分类测试、斯托普测试及路径追踪测试等认知测试，以及阅读理解测试。在整个实验过程中，参与者完成了PVT及KSS测试，并在光照暴露后收集唾液样本以测量褪黑激素浓度。