Dr. Caijilahu Bao Profile

Dr. Caijilahu Bao

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Proceedings Article | 11 September 2024 Open Access

The dilation of the pupils and the mystery of gaze: revealing the microcosm of cognitive load

Caijilahu Bao, Lulu Zhang

Proceedings Volume 13270, 132700V (2024) https://doi.org/10.1117/12.3049127

KEYWORDS: Eye, Eye tracking, Data processing, Reflection, Displays, Calibration, Motion analysis, Image segmentation

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In the process of education and learning, the lack the process of education and learning, the lackers' cognitive load may lead to the lack of accurate assessment of learners' cognitive load may lead to the design of teaching content, the provision of learning resources, and the choice of teaching methods that do not match the cognitive characteristics of learners, thereby causing difficulties in learning and affecting learning outcomes. To better achieve teaching objectives, this article reveals the level of cognitive load faced by participants in the process of searching for specific texts or symbols through tracking and in-depth analysis of eye parameters such as pupil diameter, gaze point, and gaze duration. The results show that when individuals face complex tasks, their pupils dilate sharply, a phenomenon stemming from the demand for more cognitive resources by complex tasks, which in turn triggers adjustments in the autonomic nervous system. In addition, high-frequency scanning behavior was also observed, and this frequent scanning behavior is precisely the user's attempt to quickly capture and process a large amount of information in a limited time, reflecting the tense allocation and efficient utilization of cognitive resources. The effective combination of the two can better assess the cognitive load level of the subjects.

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