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Related Experiment Videos

Do autistic children differ from retarded and normal children in Piagetian sensorimotor functioning?

S B Morgan1, P S Cutrer, J W Coplin

  • 1Memphis State University, Department of Psychology, TN 38152.

Journal of Child Psychology and Psychiatry, and Allied Disciplines
|November 1, 1989
PubMed
Summary

Children with autism show no early sensorimotor deficits compared to typically developing peers. Cognitive challenges in autism appear later, related to symbolic thinking rather than early development.

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Area of Science:

  • Developmental Psychology
  • Neurodevelopmental Disorders

Background:

  • Previous research suggested early sensorimotor deficits in autism spectrum disorder (ASD).
  • Understanding early cognitive development in autism is crucial for timely intervention.

Purpose of the Study:

  • To investigate Piagetian sensorimotor functioning in autistic children compared to intellectually disabled and typically developing children.
  • To determine if early sensorimotor deficits are specific to autism.

Main Methods:

  • Assessed 10 autistic, 10 intellectually disabled, and 10 typically developing children using the Dunst revision of the Uzgiris and Hunt scales.
  • Children were closely matched on mental age to control for developmental level.
  • Analyzed overall performance, specific subtest performance, estimated developmental ages, number of failed items, and Piagetian stage levels.

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Main Results:

  • No significant differences were found in overall sensorimotor functioning between the three groups.
  • Performance on specific subtests and Piagetian stage levels did not differ significantly across groups.
  • Autistic children's performance mirrored that of intellectually disabled and typically developing children at similar mental ages.

Conclusions:

  • Early sensorimotor functioning does not appear to be a specific deficit in autism.
  • Long-term cognitive deficits in autism may be more related to symbolic thinking, which develops later.
  • Findings challenge previous assumptions about early developmental trajectories in autism.