警觉性光环境对飞行认知任务表现的影响

The effects of monochromatic blue light and three groups of blue-enriched light on the change of alert level of flight cognitive tasks were tested from the subjective and objective performance of flight cognitive tasks. Objective experimental evaluation, including the measurement of flight main and secondary tasks and information inspection tasks, obtains the changes of the performance level of flight cognitive tasks in four alert light environments from the level of calculation and memory, judgment, error finding and logic. Subjective comprehensive evaluation is based on the alertness subjective evaluation scale of multi-dimensional indicators, the subjective comprehensive evaluation model is established using entropy weight TOPSIS method, and the subjective comprehensive evaluation ranking under each group of light environment is obtained. The results of the subjective and objective measurement were analyzed. The results show that the calculation force level of monochromatic blue light is significantly higher than that of other groups in the measurement of main and secondary missions, and the four groups of light environment have no significant influence on memory level. In the information inspection task measurement, the enhancement effects of monochromatic blue light and blue-enriched white light on cognitive performance are the same, which are significantly higher than those of other groups. In terms of overall subjective feeling, the comprehensive evaluation of blue-enriched white light is the highest, and the results can provide guidance for the design of cockpit warning lighting.