目的 基于脑电刺激诱发与响应实验，比较蒙、汉用户对界面中不同文本构型的阅读绩效，为面向不同民族的包容性设计提供理论依据与方法参考。方法 选取蒙汉双语用户和汉族用户为被试，采用事件相关电位技术，参照Dotprobe范式，以界面中不同构型文本作为靶刺激进行诱发事件相关电位实验，对行为反应时及认知资源分配量进行方差分析，比较界面中文本构型对蒙、汉用户阅读绩效的影响。结果 通过P300波幅发现蒙、汉用户阅读不同构型文本时占用认知资源和阅读绩效存在差异，文本排版差异、词划分差异、行距差异条件下组间效应显著，且行距差异条件下组间存在交互效应，蒙汉双语用户在1.5行距文本构型条件下占用认知资源更小，阅读绩效更高。结论 在事件相关电位技术中，P300潜伏期的时变差异可作为界面设计中文本构型条件刺激下衡量不同民族用户认知加工机制差异的观测量。

The purpose is to compare the reading performance of Mongolian and Chinese HAN users on different text configurations in the interface based on the EEG stimulus evoked and response experiments, so as to provide theoretical basis and methodological reference for the inclusive design for different ethnic groups. We selected Mongolian-Chinese bilingual users and Chinese HAN users as subjects, and used EEG event-related potential technology, referring to the Dotprobe paradigm, to conduct evoked event-related potential experiments with different text configurations in the interface as the target stimuli, and conducted ANOVA on behavioral response time and cognitive resource allocation to compare the effects of text configurations in the interface on the reading performance of Mongolian and Chinese HAN users. The results showed that there were differences in cognitive resources and reading performance between Mongolian and Chinese HAN users when they read different text configurations by P300 amplitude, and there were significant between-group effects under the conditions of text layout difference, word division difference, and line spacing difference, and there was an interaction effect between the groups under the condition of line spacing difference, and the Mongolian and Chinese HAN bilingual users consumed fewer cognitive resources and had a higher reading performance under the condition of 1.5 line spacing text configuration. Therefore, the time-varying difference of P300 latency can be used as an observation to measure the difference of cognitive processing mechanism of users of different nationalities under the stimulus of text configuration condition in interface design in the event-related potential technique.