高认知负荷下工作记忆VR训练对陆军军人HRV及眼动影响的研究OACSTPCD

Objective To investigate the effects of high cognitive load working memory virtual reality(VR)training on the heart rate variability(HRV)and eye movement signals of army soldiers.Methods A total of 56 male army soldiers were extracted from a certain army unit and randomly divided into the driving group and sentry group,their average age was(20.76±1.60)years old.HRV(LF norm,HFnorm,and LF/HF ratio)and eye movement signals(pupil diameter and pupil position heat map)were collected before and after VR tests for the driving group and sentry group.The data were analyzed by the statistical methods such as paired sample t-tests,Wilcoxon rank sum test and Pearson correlation analysis.Results The pupil diameter before the task test in the driving group and sentry group was significantly larger than that after the task training(P＜0.01).Except the detected HFnorm value before the A1d1 task training was significantly greater than that after the task training,there were no statistically significant differences in LFnorm,HFnorm,and LF/HF ratio before and after the tasks training for the other tasks.Except for A1d1 and B1a1 task,the pupil position distribution before the tasks training for the other tasks was more concentrated than after the tasks training.Conclusion High cognitive load working memory VR training is effectively for increasing the sol-diers'cognitive load capacity and working memory ability.