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Mental performance in Down syndrome.

A P Parikh1, N A Goyel

  • 1Smt. Motibal Thackersey Institute for Research in the Field of Mental Retardation, Bombay.

Indian Journal of Pediatrics
|March 1, 1990
PubMed
Summary
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This study assessed intellectual disability in 375 individuals with Down syndrome. Most participants (42.7%) exhibited severe intellectual disability, highlighting the need for targeted support services.

Area of Science:

  • Psychology
  • Genetics
  • Developmental Pediatrics

Background:

  • Down syndrome is a genetic disorder associated with intellectual disability.
  • Understanding the spectrum of cognitive impairment is crucial for effective intervention.

Purpose of the Study:

  • To determine the prevalence of different degrees of intellectual disability in a cohort of individuals with Down syndrome.
  • To provide data on cognitive profiles for clinical and research purposes.

Main Methods:

  • Psychological assessment was conducted on 375 individuals with clinically diagnosed Down syndrome.
  • Standardized psychometric tests were utilized to evaluate cognitive function and classify intellectual disability.

Main Results:

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  • The majority of individuals (42.7%) were classified as severely retarded.
  • Significant proportions also fell into moderate (33.1%) and profound (11.5%) intellectual disability categories.
  • Mild (9.1%) and borderline (1.9%) intelligence were less common.

    • Conclusions:

    • Intellectual disability is a near-universal characteristic of Down syndrome, with severe and profound levels being most frequent.
    • These findings underscore the importance of early and ongoing support tailored to the cognitive needs of individuals with Down syndrome.