脑力疲劳对视觉选择性注意影响的研究

发布时间：2018-03-15 00:19

  本文选题：脑力疲劳　切入点：视觉选择性注意　出处：《中国安全科学学报》2017年08期 　论文类型：期刊论文

【摘要】：为探究人的脑力疲劳对其视觉选择性注意的影响,开展监控作业系统人机工效设计试验。以32名男性为被试,采用140 min记忆刷新试验任务(2-back任务)模拟监控作业诱发脑力疲劳,然后采用2×3因素设计的中心线索提示范式模拟自动告警测量选择性注意能力,通过分析行为学及脑电(EEG)数据,研究脑力疲劳对视觉选择性注意的影响。结果表明:140 min 2-back任务诱发了脑力疲劳,脑力疲劳状态下,中心线索提示范式中的无效线索和目标刺激的疲劳效应最强,有效线索和干扰刺激的疲劳效应最弱,被试的选择性注意任务绩效下降、P300潜伏期显著延长、幅值显著减小,脑力疲劳对视觉选择性注意能力有负性影响。
[Abstract]:In order to investigate the effect of mental fatigue on visual selective attention, a man-machine ergonomics design experiment was carried out in a monitoring operation system. 32 men were selected to simulate the mental fatigue induced by monitoring operation by using 140 min memory refresh test task and 2-back task. Then the central cue-cue paradigm designed by 2 脳 3 factors was used to simulate the automatic alarm to measure selective attention ability, and the behavioral and EEG data were analyzed. The effects of brain fatigue on visual selective attention were studied. The results showed that the brain fatigue was induced by the task: 140 min 2-back. Under the condition of mental fatigue, the ineffectual cues in the central cue paradigm and the fatigue effects of target stimulation were the strongest. The fatigue effect of effective cues and interference stimuli was the weakest. The latency of P300 was significantly prolonged and the amplitude of P300 was significantly decreased. Mental fatigue had negative effect on the ability of visual selective attention.
【作者单位】： 北京航空航天大学生物与医学工程学院;中国航天员科研训练中心人因工程国防科技重点实验室;
【基金】：装备预研基金资助(51326050204) 电子信息装备体系研究国防科技重点实验室基础研究基金资助(DXZT-JC-ZZ-2015-016)
【分类号】：R318
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本文编号：1613596