Li Jingqiang, Wang Qingfu, Zhang Lu, Zhang Xining, Zhou Yanru, Zhang Huanxi
School of Safety Science and Engineering, Civil Aviation University of China, Tianjin 300300, P. R. China.
Research Institute of Civil Aviation Safety, Civil Aviation University of China, Tianjin 300300, P. R. China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2022 Apr 25;39(2):248-256. doi: 10.7507/1001-5515.202110083.
Difference of chronotypes makes influence to cognitive performance of individuals in routine duties. In this paper, 55 subjects with different chronotypes were subjected to continuous sleep deprivation for 30 h by using the constant routine protocol, during which core body temperature was measured continuously, and subjective sleepiness self-rating and the performance of selective attention were measured hourly. The results showed that the phase difference of core body temperature has no significant difference, yet the amplitude and term difference among the three chronotypes are significant. There was an advance in phase between subjective sleepiness self-rating and core body temperature, and the self-rating sleepiness of evening type came the latest, and the self-rating sleepiness of morning type dissipated the fastest. The response time of selective attention showed a 2 h phase delay with subjective sleepiness self-rating. And the analysis of core body temperature showed that the later the chronotype was, the greater the phase delay was. The correct rate of selective attention of different chronotypes were inconsistent with delay of subjective sleepiness self-rating and core body temperature. We provide reference for industry, aviation, military, medical and other fields to make a more scientific scheduling/ shifting based on cognitive performance characteristics of different chronotypes.
昼夜节律类型的差异会影响个体在日常工作中的认知表现。在本文中，55名具有不同昼夜节律类型的受试者采用恒定作息方案连续睡眠剥夺30小时，在此期间连续测量核心体温，每小时测量主观嗜睡自评和选择性注意力表现。结果表明，核心体温的相位差无显著差异，但三种昼夜节律类型之间的幅度和周期差异显著。主观嗜睡自评与核心体温之间存在相位提前，晚型的自评嗜睡出现最晚，早型的自评嗜睡消散最快。选择性注意力的反应时间与主观嗜睡自评存在2小时的相位延迟。对核心体温的分析表明，昼夜节律类型越晚，相位延迟越大。不同昼夜节律类型的选择性注意力正确率与主观嗜睡自评和核心体温的延迟不一致。我们为工业、航空、军事、医疗等领域基于不同昼夜节律类型的认知表现特征制定更科学的排班/轮班提供参考。
