Wanyan Xiaoru, Zhuang Damin, Zhang Huan
School of Aeronautics Science and Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China.
Biomed Mater Eng. 2014;24(6):2283-90. doi: 10.3233/BME-141041.
Behavioral performance, subjective assessment based on NASA Task Load Index (NASA-TLX), as well as physiological measures indexed by electrocardiograph (ECG), event-related potential (ERP), and eye tracking data were used to assess the mental workload (MW) related to flight tasks. Flight simulation tasks were carried out by 12 healthy participants under different MW conditions. The MW conditions were manipulated by setting the quantity of flight indicators presented on the head-up display (HUD) in the cruise phase. In this experiment, the behavioral performance and NASA-TLX could reflect the changes of MW ideally. For physiological measures, the indices of heart rate variability (HRV), P3a, pupil diameter and eyelid opening were verified to be sensitive to MW changes. Our findings can be applied to the comprehensive evaluation of MW during flight tasks and the further quantitative classification.
行为表现、基于美国国家航空航天局任务负荷指数（NASA-TLX）的主观评估，以及通过心电图（ECG）、事件相关电位（ERP）和眼动追踪数据索引的生理指标，被用于评估与飞行任务相关的心理负荷（MW）。12名健康参与者在不同心理负荷条件下进行了飞行模拟任务。心理负荷条件通过设置巡航阶段平视显示器（HUD）上显示的飞行指标数量来操纵。在本实验中，行为表现和NASA-TLX能够理想地反映心理负荷的变化。对于生理指标，心率变异性（HRV）、P3a、瞳孔直径和眼睑开度指标被证实对心理负荷变化敏感。我们的研究结果可应用于飞行任务期间心理负荷的综合评估及进一步的定量分类。
