The ergonomic study on the reading process of isolating language without Kanji characters

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In this study , it is examined the characteristics of an isolating language without Kanji characters bymeasuring eye movement. It is noticed that when people read Thai, both the number of fixations due toan increase in difficulty and the amount of fixation time increased. This is different from tendencieswhen reading Japanese. The high level of cognitive processing required in reading Thai was suggestedas a reason for this difference. According to a fixation point analysis, there is no fixation onmorphological elements. The tendency in which peripheral search guidance (PSG) is dominant has notbeen observed; however, the tendency of fixating on the final consonant of a word was observed. A finalconsonant has the same form as a commonly used consonant, making it impossible to distinguishbetween the two only through morphological characteristics in languages like Japanese and English. Inaddition, the cognitive search guidance (CSG) must dominate in a visual search. The informationcapacity per one fixation in Thai contains 20-30 bits more than that in Japanese and German. It issuggested that this is a cognitive characteristic