Multiple Mechanisms of Word Learning in Late-Talking Children: A Longitudinal Study.
Purpose: The aim of this study was to identify variability in word-learning mechanisms used by late-talking children using a longitudinal study design, which may explain variability in late-talking children's outcomes. Method: A cohort of typically developing children (n = 40) and children who were...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 65; no. 8; pp. 2978 - 2996 |
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| Autores principales: | , , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Aug2022
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=158620627&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 158620627 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Aug2022 vid: 65 iid: 8 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 158620627 10.1044/2022_JSLHR-21-00610 ppf: 2978 ppct: 18 formats: fmt: @attributes: type: P size: 1.2MB tig: atl: Multiple Mechanisms of Word Learning in Late-Talking Children: A Longitudinal Study. aug: au: Cheung, Rachael W. Hartley, Calum Monaghan, Padraic affil: Department of Psychology, Lancaster University, United Kingdom Psychology in Education Research Centre, Department of Education, University of York, United Kingdom su: England Memory Task performance Language acquisition Vocabulary Language disorders Learning assessment Comparative studies Neuropsychological tests Research funding Questionnaires Descriptive statistics Chi-squared test Acoustic stimulation Longitudinal method sug: subj: Memory Task performance Language acquisition Vocabulary Language disorders England Learning assessment Comparative studies Neuropsychological tests Research funding Questionnaires Descriptive statistics Chi-squared test Acoustic stimulation Longitudinal method ab: Purpose: The aim of this study was to identify variability in word-learning mechanisms used by late-talking children using a longitudinal study design, which may explain variability in late-talking children's outcomes. Method: A cohort of typically developing children (n = 40) and children who were classified as late-talking children at age 2;0 (years;months; = 10th percentile on expressive vocabulary, n = 21) were followed up at ages 3;0 and 3;6. We tested the cohort across tasks designed to isolate different mechanisms involved in word learning: encoding and producing spoken forms of words (using a nonword repetition task), identifying referents for words (using a fast mapping task), and learning associations between words and referents (using a cross-situational word-learning task). Results: Late-talking children had lower accuracy on nonword repetition than typically developing children, despite most of the sample reaching typical ranges for expressive vocabulary at age 3;6. There were no between-groups differences in fast mapping and retention accuracy; however, both were predicted by concurrent expressive vocabulary. Late-talking children performed less accurately than typically developing children on cross-situational word-learning retention trials, despite showing no between-groups differences during training trials. Combining performance across all three tasks predicted approximately 45% of the variance in vocabulary outcomes at the last time point. Conclusions: Late-talking children continue to have deficits in phonological representation that impact their word-learning ability and expressive language abilities but do not show difficulties in fast mapping novel words. Late-talking children may also struggle to retain associative information about word-referent mappings. Late-talking children thus use some, but not all, word-learning mechanisms differently than typically developing children. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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