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Related Experiment Videos

Autism and the pervasive developmental disorders.

T Charman1

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

Current Opinion in Neurology
|May 5, 1999
PubMed
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Advances in understanding childhood autism and related pervasive developmental disorders are ongoing. Challenges remain in diagnosing related conditions, but research into genetic factors and interventions shows promise.

Area of Science:

  • Developmental Psychology
  • Neuroscience
  • Genetics

Background:

  • Childhood autism and pervasive developmental disorders (PDDs) are complex neurodevelopmental conditions.
  • Heterogeneity in phenotypic expression poses challenges for diagnosis and prevalence estimation.
  • While diagnostic criteria for autism are established, related PDDs like atypical autism, PDD-unspecified, and Asperger's syndrome lack consistent application.

Purpose of the Study:

  • To review the current state of understanding regarding childhood autism and related pervasive developmental disorders.
  • To highlight advancements in diagnostic criteria, genetic research, and intervention strategies.
  • To identify ongoing challenges in the field, particularly concerning diagnostic consistency and prevalence.

Main Methods:

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  • Literature review and synthesis of current research findings.
  • Analysis of diagnostic criteria and their application.
  • Examination of evidence regarding genetic associations and neuroanatomical models.
  • Overview of pharmacological and behavioral intervention research.

    • Main Results:

    • Diagnostic criteria for childhood autism are widely agreed upon, but less so for related disorders.
    • Genetic studies suggest multiple genes contribute to autism susceptibility, with initial steps to identify loci underway.
    • Neuroanatomical models lack consistent support, but pharmacological interventions show promise.
    • Behavioral intervention programs are undergoing rigorous evaluation.

    Conclusions:

    • Progress is being made in understanding autism and related disorders, particularly in genetics and interventions.
    • Diagnostic consistency for related pervasive developmental disorders remains a significant challenge.
    • Continued research is crucial for improving diagnosis, understanding etiology, and optimizing treatment for these conditions.