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        일차성 언어장애(PLI)아동의 통계적 학습능력

        임동선(Dong Sun Yim),곽아람(Ah Ram Kwak),이여진(Yeo Jin Lee),한우주(Woo Joo Han),이지혜(Ji Hye Lee),천소연(So Yeon Chun),이슬기(Seul Ki Lee),한지윤(Ji Yun Han) 한국언어치료학회 2016 言語治療硏究 Vol.25 No.3

        Purpose : Statistical learning is known as the underlying mechanism that enables humans to acquire language implicitly. Children with primary language impairment (PLI) show low performance in both language and non-language areas compared to children with normal language (NL) because of the lack of statistical learning abilities. The purpose of this study was to compare statistical learning abilities between children with normal language (NL) and children with children with PLI. Method: A total of fifty seven children aged between 4 and 6 completed visual and auditory nonlinguistic statistical learning tasks. Group performances were compared via one-way ANOVA. Pearson’s correlation coefficient was used to identify the relation among variables, and stepwise multiple regression was used to find possible factors that predict each group’s receptive vocabulary. Results: Children with PLI performed significantly lower in both visual and auditory statistical learning tasks. In the NL group, expressive vocabulary significantly correlated with receptive vocabulary and visual statistical learning, respectively. No other correlation was significant. In the PLI group, there was strong correlation between performance IQ and auditory statistical learning, and another strong correlation was found between age and receptive vocabulary skills. Overall, age was the best predictor of receptive vocabulary skills in both NL and PLI groups. Conclusion: The results of this study indicated that difficulties that children with PLI encounter are not limited to the linguistic domain. They exhibited deficits even in the nonlinguistic domain such as statistical learning. Therefore statistical learning abilities may be impaired in children with PLI.

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