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ISSN : 1226-9654

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Vol.29 No.4

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The Korean Lexicon Project: A Lexical Decision Study on 30,930 Korean Words and Nonwords

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2017, v.29 no.4, pp.395-410
https://doi.org/10.22172/cogbio.2017.29.4.004









& (2017). The Korean Lexicon Project: A Lexical Decision Study on 30,930 Korean Words and Nonwords. The Korean Journal of Cognitive and Biological Psychology, 29(4), 395-410, https://doi.org/10.22172/cogbio.2017.29.4.004

Abstract

Fifty-two Korean students were recruited for the first Korean megastudy to construct a database of lexical decision times on 30,930 Korean words and nonwords. The stimuli were 1-5 syllable in length and included nouns, verbs, adjectives, and adverbs. Participants were asked to decide if a stimulus on the screen was a word or a nonword. Each participant responded to a total of 30,930 words and 30,930 nonwords. The analysis of the lexical decision data obtained showed significant effects of frequency and length. Response times were also affected by POS, supporting the proposal to take into account of POS in the study of the mental lexicon. Practice effect was strong only in early blocks, and some signs of fatigue were apparent at later blocks. Two virtual experiments replicated the results of actual experiments, showing that the database was reliable. Based on the results, the use of megastudy in the understanding of the Korean mental lexicon was proposed.

keywords
메가스터디, 단어재인, 어휘판단, 한글읽기, megastudy, word recognition, lexical decision, Hangul reading

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