Evaluation of mental load using EEG and eye movement characteristics
通过爆炸冲击敏感性实验诱发脑力负荷，结合主观问卷和客观时间距离测试判断负荷状态，利用脑电图β、γ波和眼动瞳孔直径、注视时间构建评估模型，发现枕叶对脑力负荷最敏感，可用于工人心理特征监测以降低事故率。
Mental load is a major cause of human-induced accidents. In this study, an explosive impact sensitivity experiment was used to induce mental load. A combination of subjective questionnaires and objective prospective time-distance tests were used to judge whether subjects experienced mental load. Four indicators, namely, β, γ, mean pupil diameter, and fixation time were selected by statistical analysis and PCA for the construction of a mental load assessment model. The study found that the occipital lobe was the most sensitive to mental load, especially β and γ bands. Lastly, it was found that subjects showed different degrees of mental load for the same mental load induction task. The results of the study are applicable to the evaluation and monitoring of the mental characteristics of workers and provide a scientific basis for adjusting the mental load of workers over time to reduce the rate of accidents and enhance production efficiency.