Analysis of Cognitive Model in Icon Search Behavior Based on ACT-R Model

This study aims to optimize the cognitive model in icon search behavior. The psychology behavioral experiment was carried out to investigate the relationship between search performance and visual elements. The response surface methodology was adopted to explore the correlation between icon arrays, line width and reaction time of search tasks. A linear fitting equation has proposed to depict the relationship between search time and icon arrays. The eye scan paths and heat maps uncover the color and shape effect on visual guiding. Therefore, it is inferred that the" Grouping Strategy" be employed in search tasks. And during the search process, the visual module of cognitive model includes two stages. One is pre-attentive stage driven by bottom-up processing, and the other is target orientation stage driven by top-down processing. The conclusion has been added to the Adaptive Control of Thought-Rational（ACT-R） model to describe the cognitive model in icon search behavior.