Productive use of the English past tense in children with focal brain injury and specific language impairment |
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Authors: | Marchman Virginia A Saccuman Cristina Wulfeck Beverly |
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Affiliation: | School of Behavioral and Brain Sciences, The University of Texas at Dallas, P.O. Box 830688 GR 41, Richardson, TX 75083-0688, USA. vamarch@utdallas.edu |
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Abstract: | In this study, 22 children with early left hemisphere (LHD) or right hemisphere (RHD) focal brain lesions (FL, n=14 LHD, n=8 RHD) were administered an English past tense elicitation test (M=6.5 years). Proportion correct and frequency of over-regularization and zero-marking errors were compared to age-matched samples of children with specific language impairment (SLI, n=27) and with typical language development (TD, n=27). Similar rates of correct production and error patterns were observed for the children with TD and FL; whereas, children with SLI produced more zero-marking errors than either their FL or TD peers. Performance was predicted by vocabulary level (PPVT-R) for children in all groups, and errors did not differ as a function of lesion side (LHD vs. RHD). Findings are discussed in terms of the nature of brain-language relations and how those relationships develop over the course of language learning. |
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