# Review of Studies on User Research Based on EEG and Eye Tracking
## 4 Application Scope
### Digital Interface
#### 4.2.1 Information Distribution Area  
The most common ways to evaluate the information distribution of interfaces in user research include usability, readability, and interface learning ability [63]. The attention and reading methods for these pieces of information are conducive to optimizing interface layout, and are used to measure usability, effectiveness, efficiency, and satisfaction during interface interaction. [PERSON] et al. [64] rated webpage visibility based on functional information such as webpage layout, color space and distribution, and internal image position and background. [PERSON] et al. [65] divided different functional areas of interfaces into corresponding AOIs, by collecting user eye-tracking paths and data; they obtained the best configuration for interface information distribution and used mouse trajectory lengths and numbers of mouse clicks required for users to perform tasks in interfaces as indicators of efficiency. They generated new interface distribution forms using a genetic algorithm for slice tree. [PERSON] et al. [66] put forth suggestions aimed at improving the user experience for game navigation interface design by leveraging the association between event-related potential (ERP) components, namely P2 and N2, and perceptual experience as well as aesthetic evaluation. In a similar vein, [PERSON] et al. [67] utilized ERPs to explore users' aesthetic inclinations towards interface layouts. The empirical findings unveiled a heightened amplitude of ERP components P2 and N2 in interfaces that aligned with aesthetic preferences. Moreover, the late positive potential (LPP) component detected an augmented sustained attention in the response to emotionally stimulating cues, thereby elucidating the underlying mechanisms by which interface layouts exert an influence on aesthetic experiences.  
[PERSON] [68] studied user visual browsing rules for mobile phone interface layouts based on eye-tracking experimental data, and summarized three basic layout structures of mobile interfaces: grid format framework, tag-based framework, and side expansion framework. The results showed that the grid format interface structure had the shortest gaze time and scanning trajectory; the side expansion structure had the longest gaze time, more gaze points, and a scanning trajectory that was significantly longer than the other two interface structures, with the target hit rate being the lowest; the search efficiency and information processing difficulty of the tag-based structure were at an intermediate level.  
[PERSON] et al. [69] conducted a user interface evaluation study on the use of library programs by users, linking eye-tracking human-computer interactions with network reading to quantitatively analyze changes in attention. The research results showed that the first arrival time of articles with high-frequency clicks was the shortest, and that such articles should be placed first. The fusion arrangement of articles with medium- and low-frequency clicks can balance readers' attention, and the distribution of information areas. In network reading, this design can bring the greatest reading benefits to guide interface design optimization.