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Sequential recall in individuals with Down syndrome

E K Bird1, R S Chapman

  • 1School of Human Communication Disorders, Dalhousie University, Halifax, Nova Scotia, Canada.

Journal of Speech and Hearing Research
|December 1, 1994
PubMed
Summary
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Individuals with Down syndrome (DS) show auditory memory span deficits but do not have specific difficulties recalling the order of information. This finding challenges theories of pervasive sequential processing impairments in DS.

Area of Science:

  • Cognitive Psychology
  • Neurodevelopmental Disorders
  • Genetics

Background:

  • Down syndrome (DS) is associated with cognitive impairments, including potential deficits in memory.
  • Previous research suggests auditory memory span limitations in individuals with DS.
  • The specific impact of DS on memory for item order remains unclear.

Purpose of the Study:

  • To investigate selective memory impairments for item order in individuals with Down syndrome.
  • To compare the ability to recall correctly ordered information in individuals with DS and mental age-matched controls.

Main Methods:

  • Utilized auditory narrative recall and digit span tasks.
  • Employed a nonverbal visual task for further assessment.
  • Matched participants based on mental age (MA).

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Main Results:

  • Individuals with Down syndrome recalled significantly less information on auditory tasks compared to controls.
  • No significant differences were found between groups in the ordering of recalled information on auditory tasks.
  • Ordering errors did not differ between groups on the visual task.

Conclusions:

  • Findings do not support a pervasive deficit in sequential processing in Down syndrome.
  • Specific difficulties in recalling the order of information are not evident in this DS cohort.
  • Alternative explanations for memory differences in Down syndrome warrant further investigation.