학습자의 실험설계 행동의 분석을 위한 Eye-tracking 과제설계 방법의 고찰

A review on Task Design Methods of Eye-tracking for Analyzing Learner’s Experimental Design Behavior

Eye movement is a neurophysiological and goal-oriented behavior and one of nonverbal expressions to communicate with others. In addition, the adjustment of the ocular muscles in eye movement could be linked to the cognitive processes of attention. Actually, eye-tracker are used to measure the subject’s pupil size, pupil location and pupil direction. Therefore, using the eye-tracker can be applied to see the subject’s attention target, attention movement, the target recognition method. Thus, this study was to review how to design the steps of task selection and design, AOI settings, and selection of analysis object in eye-tracking for analyzing the experimental design behavior. According to the several studies, task selection, AOI setting, selection of analysis object are very important processes in eye-tracking design. They should be designed based on the components of the hypothesis, and controled and dependent variables. Tasks should be developed to take subject’s attention and interesting.. Tasks are also administered a practice session for subjects before experiment session. Furthermore, the size and the position of AOI should be considered and decided in the point of study purpose. The results of eye-tracking measurement are derived from statistical analysis methods. The objects of data analysis in eye-tracking are saccade, fixation, scanpath, and regression.