Effect of sleep deprivation on miners'risk perception:based on physiological experiment
To investigate the mechanisms and effects of sleep deprivation on miners'risk perception,72 miner subjects were divided into a control group and a sleep deprivation group.Through the experimental design of 2 sleep conditions(normal,sleep deprivation)x 2 task segments(baseline segment,escape task segment),we used a head-mounted VR device with a coal mine-water damage disaster escape scenario and collected the physiological physiology of Electrodermal Activity(EDA)and Heart Rate Variability(HRV).The physiological indicators of EDA and HRV were collected by wearable sensors,and the changes in the indicators of EDA and HRV were recorded and analyzed under different task segments.The experimental results show that the escape task can effectively activate the miners'risk perception.During the escape task,the miners'Cs,LSC and FL/FH increased significantly,and the IBI and PNN20 decreased significantly;sleep deprivation can impair the miners'risk perception;it is found that there are significant differences in Cs and IBI indices between the control group and the sleep-deprived group in the baseline and escape task stages;the average values of Cs in the sleep-deprived group in the baseline and escape task stages are significantly different from the average values of Cs in the sleep-deprived group.The Cs mean is consistently higher and the IBI mean is lower in the sleep-deprived group than in the control group during the baseline phase,suggesting that sleep deprivation leads to an increase in Cs and a decrease in IBI.During the execution of the escape task,the Cs mean is greater in the control group than in the sleep deprivation group and the IBI mean is less than in the sleep deprivation group,and the degree of emotional arousal and sympathetic balance is disrupted to a greater extent in the control subjects during the escape task session.The results of the study can provide evidence and references for physiological studies related to sleep deprivation and help to improve coal mine safety.
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