ISSN : 1226-9654
Even though language processing is quite dissimilar on each hemisphere, it has been rarely studied what language information could be utilized to recognize Korean noun Eojeol in bilateral hemispheres. Eojeol is adequate for speculating language processing as it is a complicated lexical-unit in Korean. The purpose of this study is to investigate the functional contribution of bilateral hemispheres to visual processing on Korean noun Eojeol through visual half-field study. In this study, two experiments were performed. One is that Eojeol was presented in the central visual field, the other is that Eojeol was presented in the right or left visual field. Afterwards, the regression analysis was conducted to analyze the lexical variables that significantly affect the response time of Eojeol decision. It shows additionally significant lexical-variables in left and right visual field compared to center visual field. Tthe ‘root frequency’ variable was additionally significant in the right visual field. On the other hand, ‘number of strokes’, ‘number of syllables’, ‘number of letters’, ‘number of objective meanings’, and ‘number of subjective meanings’ variables additionally were significant in the left visual field. The reason for additionally significant lexical variables in each visual field was due to the induction of functional deficit in one hemisphere leading to primary Eojeol processing in the other hemisphere. This cognitive processing has a relation with the hemisphere-specific function of bilateral hemispheres. In conclusion, this study demonstrated the functional contribution of the bilateral hemispheres that could be involved in the language information processing of noun Eojeol through the visual half-field study.
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