摘要
文章结合脑力负荷理论和人因工程理论,设计模拟单调作业的人机交互实验,采用统计控制图分析持续单调作业过程中被试的脑力负荷变化,研究人因失误过程中被试的操作状态和失误模式。结果显示:(1)单调作业过程中不同作业时间段对被试的任务反应速率和正确率有显著影响。(2)当被试出现脑力超负荷时,通常采用延长反应时间的策略,来改善脑力负荷;(3)通过延长反应时间的策略,对于改善脑力负荷状态和避免人因失误有明显作用;(4)惯性操作是单调作业的人机系统出现人因失误的主要原因。
Complex operations required in modern Man-Machine System often increases mental workload on human operators. Based on task characteristics of monotonous work and the stimulated single-task experiments, the paper attempted to establish operating model and explored what were the main factors affecting mental workload and how they worked on it in monotonous works. Hence, the present study investigated what were the human operators＇ operating status and fault patterns in human-machine interaction processes. The result showed that （1） Operators under excessive mental workload usually outrun the normal response time. （2） The strategy of delaying response time had a significant effect to improve operates＇ mental workload. （3） The inertia operation the primary factor to operation improperly and response time reduced suddenly in the different phases of the task. （4） Task duration had a significant impact on the response time and accuracy of the task.
出处
《标准科学》
2011年第10期70-74,共5页
Standard Science
