Helmet mounted display systems (HMDs) are high-performance display devices for modern aircraft. We propose a novel method combining event-related potentials (ERPs) and BubbleView to measure cognitive load under different HMD interfaces. The distribution of the subjects’ attention resources is reflected by analyzing the BubbleView, and the input of the subjects’ attention resources on the interface is reflected by analyzing the ERP’s P3b and P2 components. The results showed that the HMD interface with more symmetry and a simple layout had less cognitive load, and subjects paid more attention to the upper portion of the interface. Combining the experimental data of ERP and BubbleView, we can obtain a more comprehensive, objective, and reliable HMD interface evaluation result. This approach has significant implications for the design of digital interfaces and can be utilized for the iterative evaluation of HMD interfaces.

中文翻译：

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结合事件相关电位和 BubbleView 的数字界面认知负荷测量

头盔显示系统 (HMD) 是现代飞机的高性能显示设备。我们提出了一种结合事件相关电位 (ERP) 和 BubbleView 的新方法来测量不同 HMD 界面下的认知负荷。通过分析BubbleView反映被试注意力资源的分布情况，通过分析ERP的P3b和P2组件反映被试注意力资源在界面上的输入情况。结果表明，具有更多对称性和简单布局的 HMD 界面具有更小的认知负荷，并且受试者更关注界面的上部。结合ERP和BubbleView的实验数据，我们可以获得更加全面、客观、可靠的HMD接口评估结果。