航天员在轨飞行任务前后的警觉度变化及节律特征分析

发布时间：2018-05-26 03:54

  本文选题：在轨飞行 + 警觉度　； 参考：《航天医学与医学工程》2017年06期

【摘要】：目的分析某次在轨飞行任务前后航天员警觉度及昼夜节律的变化情况,研究在轨飞行任务对航天员认知和节律的影响。方法采用心理运动警觉性任务(psychomotor vigilance task,PVT)方法对3名航天员某次在轨飞行任务前和返回后的警觉度进行测试。结果与飞行前第一次PVT结果相比,有2名航天员在飞行后有较大改变,其中第一名航天员PVT均值在飞行后降低,而第三名升高。第二名航天员的PVT均值在飞行前后无明显改变。本研究还对PVT的节律特征进行初步分析,发现不同航天员在飞行前后都发生了变化,且变化趋势有所不同。这些数据提示不同航天员警觉度及其节律特征的变化趋势在飞行前后可能存在个体差异。结论在轨飞行对人心理和认知能力的节律具有一定影响,且这种影响具有个体差异性。
[Abstract]:Objective to analyze the changes of astronauts' alertness and circadian rhythm before and after an orbiting mission, and to study the effects of on-orbit missions on the cognition and rhythm of astronauts. Methods the alertness of three astronauts before and after an orbiting mission was tested by psychomotor vigilance task. Results compared with the results of the first PVT before flight, two astronauts had great changes after flight, among which the average PVT of the first astronaut decreased after flight, while the third one increased. The average PVT of the second astronaut did not change significantly before and after flight. The rhythmic characteristics of PVT were also analyzed, and it was found that different astronauts changed before and after flight, and the trend was different. These data suggest that there may be individual differences in the trend of different astronauts' alertness and rhythmic characteristics before and after flight. Conclusion In-orbit flight has a certain influence on the rhythm of human psychological and cognitive ability, and this influence has individual differences.
【作者单位】： 中山大学生命科学学院;中国航天员科研训练中心人因工程重点实验室;中国载人航天工程办公室;
【基金】：国家重点基础研究计划973项目(2011CB711000) 中国航天员科研训练中心飞天基金项目(FTKY201505) 国家自然科学基金面上项目(157120578)
【分类号】：R85
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本文编号：1935834