“…Researchers previously have mainly used eye tracker of display system as a device that captures in two dimentions; (Higuchi et al, 2019;Kusunoki et al, 2017;Mpofu, 2016), and prediction of eye movement by reading pattern detection (Rajendran, 2018), and textbooks. Those researches also showed the results of analysis of eye movements and cognitive load in elementary school students (Seong-un et al, 2016), analysis of eye movements when reading picture books (Watabe et al, 2019), a relationship between infant cognitive function and eye contact (Urakawa et al, 2011), a relationship between the moving distance by the line of sight to the stimulus and the judgment of preference (Kouroki et al, 2016), and the movement of the line of sight in the joint attention scene (Hakuno and Minagawa, 2017;Nagai et al, 2017). In the music field, some researchers showed the results regarding auditory rhythm, eye movement during reading the sheet music (Fusase, 2017;Lörch et al, 2017;l chl and Obleser, 2017), and eye-hand synchronization during musical instrument performance (Marandola, 2017).…”