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Korean Journal of Psychology: General

  • KOREAN
  • P-ISSN1229-067X
  • E-ISSN2734-1127
  • KCI

The effects of lexical category of maternal linguistic inputs on early lexical development of Korean infants.

Korean Journal of Psychology: General / Korean Journal of Psychology: General, (P)1229-067X; (E)2734-1127
2004, v.23 no.2, pp.105-120



Abstract

We investigated which lexical categories of maternal inputs predict most to infants' lexical development. The constraints view predicts that nouns are the most influencing lexical category, whereas the linguistic specificity view predicts verbs are the ones. Twenty six 13- to 36-month-old infants and their mothers were audiotaped when the mothers read a wordless picture book to their infants. All the words(i.e., the word token) as well as different words(i.e., the word types) in mothers' inputs were categorized into 7 lexical categories of Korean grammar. To assess the infants' vocabulary size, MCDI-K vocabulary checklist was used. The results show that, both in type and token analyses, pronouns were the most influencing word category. Further analyses showed that nouns and determinants were the significant predictors only for the younger infant group in the both type and token analyses. And for the type analysis, pronoun category was a significant predictor only for the older infant group. These results were reinterpreted as favoring the constraints view rather than the linguistic specificity view. Also the results indicated that lexical categories other than nouns and verbs are positive predictors of Korean infants' lexical development.

keywords
언어적 입력, 대명사, 명사, 동사, 표현어휘수, maternal linguistic inputs, lexical category, noun, verb, pronoun, maternal linguistic inputs, lexical category, noun, verb, pronoun

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Korean Journal of Psychology: General