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Variability and the development of skilled actions

E de J Manoel1, K J Connolly

  • 1Department of Psychology, University of Sheffield, UK.

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
|March 1, 1995
PubMed
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Motor skill development relies on adaptation, not just consistency. Variability in movement behavior is crucial for refining skills and achieving complex motor acts.

Area of Science:

  • Motor learning and skill acquisition
  • Developmental psychology
  • Biomechanics

Background:

  • Traditional views emphasize motor skill consistency and invariance.
  • This focus has overlooked adaptation and skill reorganization processes.
  • Variability in motor behavior is proposed as key to adaptation.

Purpose of the Study:

  • To investigate the role of motor variability in skill development and adaptation.
  • To examine the implications of variability in open systems for development.
  • To differentiate between error variability and functional variability.

Main Methods:

  • Two experiments were conducted on children acquiring a skilled action.
  • A sequential coincident timing task was employed.

Related Experiment Videos

  • The task allowed for distinguishing the macrostructure and microstructure of the action.

    • Main Results:

    • Motor actions become more consistent at the macrostructure level with development.
    • This increased consistency is facilitated by maintaining variability at the microstructure level.
    • Functional variability aids in solving motor problems during skill acquisition.

    Conclusions:

    • Variability is essential for motor skill adaptation and the development of complex actions.
    • Development involves achieving macrostructure consistency through microstructure variability.
    • Understanding variability is key to understanding motor skill development.