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Asynchronous language acquisition in developmental dysphasia.

C Ouellet1, H Cohen, M T Le Normand

  • 1Centre de neuroscience de la cognition, UQAM, Canada.

Brain and Cognition
|June 17, 2000
PubMed
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This longitudinal study tracked two children with developmental dysphasia. One child showed significant language development, while the other continued to struggle, highlighting varied recovery paths.

Area of Science:

  • Child language acquisition
  • Developmental psycholinguistics
  • Speech and language disorders

Background:

  • Developmental dysphasia presents heterogeneous linguistic profiles.
  • Understanding the trajectory of language development in affected children is crucial.
  • Longitudinal data are essential for analyzing atypical language processing.

Purpose of the Study:

  • To document and compare the linguistic evolution of two children with mixed developmental dysphasia.
  • To investigate if the development of analytic mechanisms in linguistic processing follows similar patterns.
  • To analyze spontaneous speech and language production over time.

Main Methods:

  • A longitudinal study assessed two children with developmental dysphasia from 4 to 5.5 years.

Related Experiment Videos

  • Psycholinguistic tests were administered at 6-month intervals.
  • Spontaneous speech and language production (consonant repertoire, MLU, lexical diversity) were analyzed in a symbolic play context.

    • Main Results:

    • Child 1 demonstrated marked improvement in phonological motor control and morphosyntaxic rule application.
    • Child 2 remained impaired in phonology and morphosyntax.
    • Significant developmental changes in spontaneous speech revealed dynamic relationships between language production facets.

    Conclusions:

    • Individual children with developmental dysphasia exhibit variable deficits and lexical automation.
    • Contrasting language production profiles underscore the importance of longitudinal studies.
    • Atypical linguistic processing paths in developmental dysphasia require in-depth longitudinal analysis.