Noun and Verb Lexicons Differentially Predict Later Grammatical Development in Mandarin-Speaking Children With and Without Late Language Emergence.

Autor: Liu HM; Department of Special Education, National Taiwan Normal University, Taipei.; Institute for Research Excellence in Learning Sciences, National Taiwan Normal University, Taipei., Tsao FM; Department of Psychology, National Taiwan University, Taipei., Lin CY; Department of Audiology and Speech-Language Pathology, Asia University, Taichung, Taiwan., Rost G; Department of Communication Disorders, University of Massachusetts Amherst., Guo LY; Department of Audiology and Speech-Language Pathology, Asia University, Taichung, Taiwan.; Department of Communicative Disorders and Sciences, University at Buffalo, NY.
Jazyk: angličtina
Zdroj: Journal of speech, language, and hearing research : JSLHR [J Speech Lang Hear Res] 2023 Oct 04; Vol. 66 (10), pp. 3940-3953. Date of Electronic Publication: 2023 Aug 24.
DOI: 10.1044/2023_JSLHR-22-00528
Abstrakt: Purpose: The current investigation evaluated the extent to which early noun, verb, and adjective lexicon sizes predicted later grammatical outcomes in Mandarin-speaking children with and without late language emergence (LLE) using a parent report.
Method: In Study 1, the parents of 24 Mandarin-speaking children with typical language filled out the toddler version of Mandarin-Chinese Communicative Development Inventory-Taiwan (MCDI-T) when these children were 24 and 36 months old. In Study 2, the parents of 23 children with LLE completed the same form when these children were 24, 36, and 48 months old. Noun, verb, and adjective lexicon sizes and grammatical complexity scores were computed from the MCDI-T form for each child.
Results: Study 1 showed that verb lexicon size, but not noun or adjective lexicon size, at 24 months predicted grammatical complexity scores at 36 months for children with typical language. Study 2 revealed that noun lexicon size, but not verb or adjective lexicon size, at 24 months predicted grammatical complexity scores at 36 months for children with LLE. Noun lexicon size at 36 months was also the only significant predictor for grammatical complexity scores at 48 months in children with LLE.
Conclusions: Noun and verb lexicon size differentially predicted later grammatical outcomes in young Mandarin-speaking children with and without LLE. The finding suggested that children with LLE may have approached grammatical learning differently from their typical peers due to the small verb lexicon size in the early phase of language development.
Databáze: MEDLINE
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