Influence of mental fatigue caused by simulated flight tasks on uncertainty decision making

中华航空航天医学杂志 Pub Date : 2016-09-15 DOI:10.3760/CMA.J.ISSN.1007-6239.2016.03.002

Nan Mao, He Huang, Tian Feng

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Abstract

Objective To investigate the characteristics of uncertainty decision making and to elucidate the theoretical basis for reducing the flight mistakes under mental fatigue. Methods One hundred and twenty male undergraduate military students were averagely and randomly divided into experimental and control groups. The experimental group completed decision making tasks with induced mental fatigue while the control group directly accomplished them without the induction. The subjective fatigue and the task completion scores of two groups were compared. Results Mental fatigue was successfully induced: after simulated flight tasks the subjective fatigue scale scores of experimental group were significantly higher than those before the task (t=15.92, P 0.05) but the risk decision (F=10.89, P 0.05). Conclusions Mental fatigue makes individuals insensitive to risk (loss and punishment). The population of mental fatigue may easily pay more attention to short-term interests than to long-term losses. Mental fatigue could lead flying personnel to make impulsive and risky aviation decisions and endanger aviation safety. Key words: Mental fatigue; Decision making; Questionnaires; Simulated flight task; Iowa gambling task

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模拟飞行任务引起的精神疲劳对不确定性决策的影响

目的探讨不确定性决策的特点，为减少精神疲劳下的飞行失误提供理论依据。方法将120名男军校本科生平均随机分为实验组和对照组。实验组在诱导精神疲劳的情况下完成决策任务，对照组在不诱导的情况下直接完成决策任务。比较两组的主观疲劳和任务完成得分。结果模拟飞行任务后，实验组的主观疲劳量表得分显著高于任务前(t=15.92, P 0.05)，但风险决策得分显著高于任务前(F=10.89, P 0.05)。结论精神疲劳使个体对风险(损失和惩罚)不敏感。精神疲劳的人群可能更容易关注短期利益，而不是长期损失。精神疲劳会导致飞行人员做出冲动、冒险的航空决策，危及航空安全。关键词:精神疲劳;决策;问卷调查;模拟飞行任务;爱荷华赌博任务

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来源期刊

中华航空航天医学杂志航空航天医学

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发文量

2962

期刊介绍： The aim of Chinese Journal of Aerospace Medicine is to combine theory and practice, improve and popularize, actively advocate a hundred flowers bloom and a hundred schools of thought contend, advocate seeking truth from facts, promote the development of the related disciplines of aerospace medicine and human efficiency, and promote the exchange and penetration of aerospace medicine and human efficiency with other biomedical and engineering specialties. Topics of interest for Chinese Journal of Aerospace Medicine include: -The content of the journal belongs to the discipline of special medicine and military medicine, with the characteristics of multidisciplinary synthesis and cross-penetration, and mainly reflected in the aerospace industry, aerospace flight safety and efficiency, as well as the synthesis of special medicine, preventive medicine, environmental medicine, psychology, etc. -Military aeromedicine (Air Force, Navy and Army aeromedicine) and civil aeromedicine, with a balance of aerospace medicine are the strengths of the journal. -The change in aerospace medicine from a focus on promoting physiological compensatory adaptations to enhancing human performance under extreme environmental conditions is what the journal is helping to promote. -The expansion of manuscripts in high altitude medicine is also a special emphasis of the journal.