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Gesturing with an Injured Brain: How Gesture Helps Children with Early Brain Injury Learn Linguistic Constructions
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In: Psychology Faculty Publications (2013)
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Abstract:
Children with pre/perinatal unilateral brain lesions (PL) show remarkable plasticity for language development. Is this plasticity characterized by the same developmental trajectory that characterizes typically developing (TD) children, with gesture leading the way into speech ? We explored this question, comparing eleven children with PL – matched to thirty TD children on expressive vocabulary – in the second year of life. Children with PL showed similarities to TD children for simple but not complex sentence types. Children with PL produced simple sentences across gesture and speech several months before producing them entirely in speech, exhibiting parallel delays in both gesture+speech and speech-alone. However, unlike TD children, children with PL produced complex sentence types first in speech-alone. Overall, the gesture–speech system appears to be a robust feature of language learning for simple – but not complex – sentence constructions, acting as a harbinger of change in language development even when that language is developing in an injured brain.
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Keyword:
expressive vocabulary; gesture; language development; perinatal unilateral brain lesions; plasticity; prenatal unilateral brain lesions; Psychology; speech
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URL: https://scholarworks.gsu.edu/psych_facpub/71
https://scholarworks.gsu.edu/cgi/viewcontent.cgi?article=1070&context=psych_facpub
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