Exploring the Schema of Attention and Search Strategy in Different Levels of Situation Awareness under Fall Hazard Conditions

Situation awareness is a cognitive process involving perception, comprehension, and prediction of the environment, and it is critical to accurately identify and manage hazards. Analyzing differences in physiological data can help determine an individual's situation awareness level and pinpoint the reasons for hazard identification failures. This study used eye movement data to quantify the differences in attention and search strategies at each level of situation awareness. The results showed that attention-related eye movement data, such as fixation duration, run count, and pupil diameter, increase in number or size as the level of situation awareness increases, while saccade count decreases. Moreover, individuals with higher situation awareness tend to use more systematic search strategies, enabling them to identify hazards more accurately and quickly. These findings provide insights into the differences between the various situation awareness levels and a foundation for developing customized training programs to enhance hazard identification skills.