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Haptic perception is altered in children with developmental coordination disorder.

Yu-Ting Tseng1, Jessica M Holst-Wolf2, Chia-Liang Tsai3

  • 1Department of Physical Education, National Tsing Hua University, Taiwan; Research Center for Education and Mind Sciences, National Tsing Hua University, Taiwan.

Neuropsychologia
|February 11, 2019
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Summary

Children with Developmental Coordination Disorder (DCD) show impaired haptic acuity, impacting fine motor skills. Haptic sensitivity remains unaffected, suggesting a specific somatosensory deficit in DCD.

Keywords:
HumanMotor controlMotor developmentNeurodevelopmentPerceptual developmentSomatosensoryThresholds

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Occupational Therapy

Background:

  • Developmental Coordination Disorder (DCD) is a neurodevelopmental condition impacting motor skills.
  • Somatosensory system dysfunction may co-occur with DCD.
  • Haptic perception, crucial for fine motor control, relies on somatosensory input.

Purpose of the Study:

  • To investigate haptic perception deficits in children with DCD.
  • To differentiate between haptic sensitivity and haptic acuity in DCD.
  • To explore the relationship between haptic perception and motor abilities in DCD.

Main Methods:

  • Systematic quantification of haptic sensitivity and acuity using curvature detection and discrimination tasks.
  • Comparison of haptic performance between children with DCD, typically developing (TD) children, and adults.
  • Correlation analysis between haptic acuity and clinical motor assessments.

Main Results:

  • Children with DCD exhibited significantly poorer haptic acuity (higher discrimination thresholds) than TD children and adults.
  • No significant impairment in haptic sensitivity was observed in the DCD group.
  • Haptic acuity positively correlated with motor abilities, with better acuity linked to superior motor function.

Conclusions:

  • DCD is associated with impaired haptic perception, specifically reduced haptic acuity.
  • This somatosensory deficit likely contributes to the characteristic fine motor difficulties observed in DCD.
  • Findings suggest potential therapeutic targets for DCD interventions focusing on haptic feedback.