Hemisphere specialization for different levels of processing of visually presented
Kanji letter with normal right-handed adults was investigated. A tendency toward left visual field superiority was found in the physical matching task and a significant right visual field superiority was found in the semantic congruency decision task. These results suggest that while in a lower level of processing single
Kanji letters may be processed dominantly in the right hemisphere, in a higher level of thought processing of
Kanji such as a semantic decision of the congruency with respect to the frame of reference, left hemisphere plays a superior functional role in processing.
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