目的 比较蒙、汉用户在不同界面布局的条件刺激下视觉注意对脑电刺激诱发响应的调节和影响作用。方法 基于Oddball实验范式的事件相关电位技术，采用图文形式和纯文本形式的宫格式、标签式，以及侧面展开式界面布局刺激，结合分析脑电数据和行为数据，探究界面布局设计对蒙、汉用户视觉注意的影响。结果 对视觉注意的早期阶段进行研究后发现，图文形式宫格式布局对汉族用户的视觉注意具有显著的刺激和调节作用，而图文形式侧面展开式布局对蒙古族双语用户的视觉注意有显著的刺激和调节作用。通过P300成分波幅发现蒙、汉用户的情绪发生变化，蒙、汉用户在纯文本形式标签式布局界面的影响下产生消极情绪，波幅降低。结论 在事件相关电位技术中，通过P100成分与P300成分的波幅强度变化，可以作为界面布局刺激条件下衡量比较不同民族地区用户视觉注意与情感体验的观测量。

The work aims to compare the role of visual attention in modulating and influencing the EEG stimulus-evoked responses of Mongolian and Chinese users under conditioned stimuli with different interface layouts. Based on the event-related potential technique of the Oddball experimental paradigm, the influence of interface layout design on the visual attention of Mongolian and Chinese users were investigated by graphic and text-only interface layout stimuli in the form of graphic-format, tabbed, and side-expanded interface layouts in conjunction with the analysis of the EEG data and behavioral data. For the early stage of visual attention, it was found that the graphic-format layout had a significant stimulating and modulating influence on the visual attention of Chinese users, and the graphic format side-expanded layout had a significant stimulating and modulating influence on the visual attention of Mongolian bilingual users. Through the P300 component amplitude, it was found that the mood of the Mongolian and Chinese users changed, the Mongolian and Chinese users in the plain text form of the tabbed layout of the interface had negative mood and the amplitude of the wave decreased. In the event-related potential technique, the change of wave amplitude intensity through the P100 component and P300 component can be used as an observable quantity to measure the comparison of visual attention and emotional experience of users from different ethnic regions under the stimulus condition of interface layout.