HUD状态下飞行员视觉注意资源分配机制研究

为了解决平视显示器（Head Up Display,HUD）飞行中的注意资源分配问题，基于飞行模拟器，设计双作业飞行任务开展相关研究。基于事件相关电位（Event Related Potential，ERP）技术，选取行为绩效和P300成分为评价指标，采用oddball模式，在双作业飞行任务条件下开展实验研究。结果表明:随主任务难度的增加，主、辅任务的作业绩效均显著下降，被试者对HUD上异常信息的正确操作率降低，且反应时间延长；随主任务难度的增加，由辅任务所诱发的P300的波幅显著降低。在实验结果的基础上，最终提出了HUD状态下飞行员视觉注意资源分配机制。

Study on allocation mechanism of visual attention resource for pilots under HUD status

To solve the problem of attention resource allocation in head up display (HUD) flight,a dual task flight mission was design based on the flight simulator to carry out the related research.Based on the event related potential (ERP) technology,the behavioral performance and P300 components were selected as the evaluation indexes,and the oddball mode was adopted to carry out experimental research under the conditions of dual task flight mission.The results showed that with the increase of the difficulty of main task,both the performance of the main and auxiliary tasks decreased significantly,the correct operation rate of the subjects for the abnormal information on the HUD decreased,and the reaction time prolonged.With the increase of the difficulty of main task,the amplitude of P300 induced by the auxiliary task decreased significantly.Based on the experimental results,the allocation mechanism of visual attention resource for the pilots under HUD status was put forward finally.