Eye-tracking analysis for the disabled in the spatial environment

In order to examine the cognition behaviors of the physical disabled in the spatial environment such as subway system, we implemented the on-site eyetracking experiment in the real subway environment. We hired 12 physical disabled people who sit on the wheelchairs and conducted certain experiment at National Library Station, Beijing Subway. By using SMI-HED eye tracker, we collected physiological data concerning disabled’s visual cognition performances such as fixation, saccades, diameter of pupil and etc. Afterwards, we implemented quantitative data analysis and established math model through correlation analysis between different variables. We found there remained a correlation between variance of saccade’s displacement with task time.