Early Effect of Phonological Information in Korean Visual Word Recognition: An ERP Investigation with Transposed Letters |
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Authors: | Youan Kwon Changhwan Lee Jini Tae Yoonhyoung Lee |
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Affiliation: | 1.Department of Psychology,Catholic University of Daegu,Gyeongsan-si,Korea;2.Department of Psychology,Sogang University,Seoul,Korea;3.Department of Psychology,Yeungnam University,Gyeongsan-si,Korea |
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Abstract: | The purpose of this study was to examine the role of phonological information on visual word recognition by using letter transposition effects. The Korean writing system gives a unique opportunity to investigate such phenomenon since the transposition of the beginning consonant (onset) and the end consonant (coda) of a certain syllable allows one to keep the coda phonology constant while changing the written alphabetic characters. In this study, 23 participants’ ERPs to such transposition cases were compared with the ERPs to cases that do not maintain coda phonology while the participants were performing a go/no-go lexical decision task for visually presented letter strings. The results of the current study showed that transposed materials with original phonological information produce less N250 than both the baseline condition and the transposed materials with different phonological information condition. The results suggest that phonological information is used early in the lexical process in Korean and early orthographic processing is influenced by the characteristics of the grapheme to phoneme conversion process. |
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