Using eye movement activity as a correlate of cognitive workload
Using eye movement activity as a correlate of cognitive workload
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DOI：
10.1016/j.ergon.2006.04.002
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发表时间：
2006-07-01
影响因子：
3.1
通讯作者：
Friedman-Berg, Ferne J.
中科院分区：
文献类型：
--
作者：
Ahlstrom, Ulf;Friedman-Berg, Ferne J.
在本研究中，我们调查了使用天气显示器对空中交通管制员操作和工作量的影响。具体而言，我们评估了在恶劣天气条件下，管制员管理交通时，对恶劣天气规避、管制员效率、飞行员与飞行员通信以及空域运营安全的影响。结果表明，使用天气显示器对控制器效率产生了显着影响，扇区吞吐量增加了10%。我们没有发现天气显示器对避免恶劣天气，控制器通信和主观工作负荷评级的显着影响。然而，使用与认知工作负荷相关的眼动活动测量，我们发现当控制器在缺乏天气显示的条件下操作交通时，眨眼持续时间显着缩短，表明在这些条件下工作负荷水平较高。此外，平均瞳孔直径显着较大时，控制器使用静态风暴预报工具相比，当控制器使用动态预报工具，表明在使用静态工具的工作量更高的水平。我们的结论是，眼动活动措施可以提供一个更敏感的措施控制器的工作量，主观评级可能不会捕捉更多的瞬态波动的工作量水平在系统或显示interactions.Relevance到industryUsing实时眼动活动措施，设计师可以更好地评估操作员的工作量变化在设计和评估复杂的系统。如果我们能够在设计过程中及早发现工作负荷诱导条件，我们就可以改进设计，优化操作员工作负荷。降低开发成本。由爱思唯尔公司出版
In the present study, we investigated the effect on air traffic controller operations and workload from the use of weather displays. Specifically, we assessed the impact on severe weather avoidance, controller efficiency, controller-pilot communications, and the safety of airspace operations when controllers managed traffic during adverse weather conditions. The results showed a significant impact on controller efficiency from the use of weather displays with an increase in sector throughput by up to 10%. We found no significant effects of weather displays on severe weather avoidance, controller communications, and subjective workload ratings. However, using eye movement activity measures that correlate with cognitive workload, we found significantly shorter blink durations when controllers operated traffic in conditions lacking a weather display, indicating a higher workload level during these conditions. Also, the mean pupil diameter was significantly larger when controllers used a static storm forecast tool compared to when controllers used a dynamic forecast tool, indicating a higher workload level during the use of static tools. We conclude that eye movement activity measures can provide a more sensitive measure of controller workload, and that subjective ratings might not capture more transient fluctuations in workload levels during system or display interactions.Relevance to industryUsing real-time eye movement activity measures, designers can better evaluate changes in operator workload during the design and evaluation of complex systems. If we can detect workload-inducing conditions early in the design process, we can improve the design, optimize operator workload.. and reduce developmental costs. Published by Elsevier B.V.