Dyspraxia, motor function and visual-motor integration in autism

M. Miller, L. Chukoskie, M. Zinni, J. Townsend, D. Trauner

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

This project assessed dyspraxia in high-functioning school aged children with autism with a focus on Ideational Praxis. We examined the association of specific underlying motor function including eye movement with ideational dyspraxia (sequences of skilled movements) as well as the possible role of visual-motor integration in dyspraxia. We found that compared to IQ-, sex- and age-matched typically developing children, the children with autism performed significantly worse on: Ideational and Buccofacial praxis; a broad range of motor tests, including measures of simple motor skill, timing and accuracy of saccadic eye movements and motor coordination; and tests of visual-motor integration. Impairments in individual children with autism were heterogeneous in nature, although when we examined the praxis data as a function of a qualitative measure representing motor timing, we found that children with poor motor timing performed worse on all praxis categories and had slower and less accurate eye movements while those with regular timing performed as well as typical children on those same tasks. Our data provide evidence that both motor function and visual-motor integration contribute to dyspraxia. We suggest that dyspraxia in autism involves cerebellar mechanisms of movement control and the integration of these mechanisms with cortical networks implicated in praxis.

Original languageEnglish (US)
Pages (from-to)95-102
Number of pages8
JournalBehavioural Brain Research
Volume269
DOIs
StatePublished - Aug 1 2014
Externally publishedYes

Fingerprint

Apraxias
Autistic Disorder
Eye Movements
Motor Skills
Saccades

Keywords

  • Autism
  • Cerebellum
  • Dyspraxia
  • Eye movement
  • Motor
  • Visual-motor integration

ASJC Scopus subject areas

  • Behavioral Neuroscience

Cite this

Dyspraxia, motor function and visual-motor integration in autism. / Miller, M.; Chukoskie, L.; Zinni, M.; Townsend, J.; Trauner, D.

In: Behavioural Brain Research, Vol. 269, 01.08.2014, p. 95-102.

Research output: Contribution to journalArticle

Miller, M. ; Chukoskie, L. ; Zinni, M. ; Townsend, J. ; Trauner, D. / Dyspraxia, motor function and visual-motor integration in autism. In: Behavioural Brain Research. 2014 ; Vol. 269. pp. 95-102.
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