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Related Experiment Videos

Visual evoked potentials in children with developmental coordination disorder

M A Mon-Williams1, R T Mackie, D L McCulloch

  • 1Department of Vision Sciences, Glasgow Caledonian University, UK.

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
|March 1, 1996
PubMed
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Children with developmental coordination disorder (DCD) showed no visual pathway differences. While VEPs were harder to record in DCD patients, their visual processing speed was similar to controls, ruling out visual pathway issues.

Area of Science:

  • Neuroscience
  • Developmental Pediatrics
  • Ophthalmology

Background:

  • Developmental Coordination Disorder (DCD) affects children's skilled movement without physical handicap.
  • Accurate diagnosis of DCD is crucial for appropriate intervention and support.
  • Understanding the underlying neurological factors in DCD is essential for targeted treatments.

Purpose of the Study:

  • To evaluate the integrity of the visual pathway in children with DCD using visually evoked potentials (VEPs).
  • To investigate if neurological lesions affecting visual input contribute to DCD.
  • To compare visual pathway function between children with DCD and a healthy control group.

Main Methods:

  • Visually evoked potentials (VEPs) were recorded in 14 children (5-7 years) diagnosed with DCD.

Related Experiment Videos

  • An age-matched control group was used for comparison.
  • Binocular pattern onset VEPs with high contrast grating stimuli were employed to measure implicit times.

    • Main Results:

    • VEPs were more challenging to record in the DCD group due to inattention and movement artifacts, leading to smaller amplitudes.
    • No significant differences in implicit times of VEPs were found between children with DCD and the control group.
    • This suggests the afferent visual pathway's integrity is not a primary causal factor in DCD.

    Conclusions:

    • The study indicates that visual pathway integrity is unlikely to be a direct cause of DCD.
    • Further research is needed to pinpoint the specific neurological deficits underlying DCD.
    • VEP analysis, despite technical challenges, provides valuable insights into visual processing in DCD.