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Related Experiment Videos

Timing and force control during a sequential tapping task in children with and without motor coordination problems.

J P Piek1, R A Skinner

  • 1Research Centre for Applied Psychology, Curtin University of Technology, Perth, Western Australia. j.piek@psychology.curtin.edu.au

Journal of the International Neuropsychological Society : JINS
|June 1, 1999
PubMed
Summary
This summary is machine-generated.

Clumsy children exhibit motor coordination deficits, taking longer to start finger tapping sequences. This study suggests peripheral impairments, not central timing issues, contribute to their timing difficulties.

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Area of Science:

  • Developmental neuroscience
  • Motor control research
  • Pediatric neurology

Background:

  • Children with motor coordination problems, often termed 'clumsy children', display difficulties in executing precise movements.
  • Previous research suggested central timing mechanisms, like the cerebellum, underlie motor timing deficits in these children.

Purpose of the Study:

  • To compare the planning and execution of sequential finger tapping between children with and without motor coordination problems.
  • To investigate the underlying mechanisms contributing to timing deficits in clumsy children.

Main Methods:

  • A sequential tapping task was administered to 15 children with motor coordination problems and 15 age-, sex-, and Verbal IQ-matched controls.
  • Key metrics analyzed included reaction time, tap duration, inter-tap interval, and average force during tapping.

Main Results:

  • Clumsy children demonstrated significantly longer reaction times to initiate movement sequences.
  • These children also exhibited prolonged finger contact duration on the tap plate during sequence execution.
  • No significant differences were observed in the time between taps or mean average force.

Conclusions:

  • The findings suggest that impairments in peripheral motor processes, rather than central timing deficits, are more significant contributors to motor timing issues in clumsy children.
  • This challenges previous hypotheses implicating cerebellar or central timing mechanisms as the primary cause.