The following parameters were measured: driving performance on the testing ground,visual and auditory reaction time,critical flicker frequency(CFF),subjective scores of Stanford sleepiness scale(SSS) and rating of perceived exertion(RPE).

• 测定指标包括考核场汽车驾驶能力、视听反应能力和临界闪光融合频率(CFF)、斯坦福嗜睡量表和自认疲劳分级量表评分。