Theoretical Basis

1. Famous psychologist Keith Rayner said series of reading text and comprehending text are reflected at gaze pattern

• Eye movements, Keith Rayner and Monica Castelhano (2007), Scholarpedia, 2(10):3649

2. Gaze pattern different according to text difficulty. If text is difficult, number of fixation increase, number of saccade increase and time of saccade decrease.

• Analysis of Reading Process with Korean Learner using EEG and Eye Tracking, JESK, 2017, Jung Nam Im, Seung Nam Min, Sung Moon Cho

※ Text Difficulty

Electric Fan < Alleyway < Hare

We can see number of fixation increase from "Electric Fan" to "Hare"

We can see number of saccade increase from "Electric Fan" to "Hare"

We can see saccade time decrease from "Electric Fan" to "Hare"