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Predicting language outcome in infants with autism and pervasive developmental disorder.

Tony Charman1, Simon Baron-Cohen, John Swettenham

  • 1Behavioural & Brain Sciences Unit, Institute of Child Health, University College London, UK. t.charman@ich.ucl.ac.uk

International Journal of Language & Communication Disorders
|July 10, 2003
PubMed
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Early social-communication skills like joint attention and imitation in infants with autism spectrum disorder (ASD) and pervasive developmental disorder (PDD) predict later language development. Diagnosis also influences language outcomes.

Area of Science:

  • Developmental Psychology
  • Pediatric Neurology
  • Speech-Language Pathology

Background:

  • Investigating the relationship between early developmental markers and later language outcomes in infants diagnosed with autism spectrum disorder (ASD) or pervasive developmental disorder (PDD).
  • Understanding how social-communication abilities influence language development in young children with ASD/PDD is crucial for early intervention strategies.

Purpose of the Study:

  • To examine longitudinal associations between diagnosis, joint attention, play, and imitation abilities in infants and their subsequent language outcomes.
  • To identify key predictors of language development in toddlers diagnosed with autism spectrum disorder or pervasive developmental disorder.

Main Methods:

  • A longitudinal correlational design was employed with a sample of infants diagnosed with autism spectrum disorder at 20 months of age.

Related Experiment Videos

  • Experimental measures assessed joint attention, play, and imitation at 20 months, with language outcomes evaluated at 42 months.

    • Main Results:

    • Children diagnosed with PDD showed higher language outcomes at 42 months compared to those with ASD.
    • Language at follow-up was positively associated with joint attention and imitation skills at 20 months.
    • No significant association was found between language outcomes and play abilities or non-verbal IQ at 20 months, though limitations exist.

    Conclusions:

    • Infant social-communication skills and diagnosis are potential predictors of language outcomes in preschoolers with ASD.
    • Assessing imitation and joint attention in young children referred for ASD diagnosis is recommended.
    • These social-communication abilities may serve as important targets for early intervention programs.