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A Comparison of Two References for Using Knowledge of Performance in Learning a Motor Task.

T A Brisson1, C Alain2

  • 1a Faculty of Kinesiology , University of New Brunswick.

Journal of Motor Behavior
|November 28, 2002
PubMed
Summary
This summary is machine-generated.

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Knowledge of results (KR) proved more effective than a criterion template (CT) for learning movement timing and patterns. This finding highlights how KR aids in motor skill acquisition and retention.

Area of Science:

  • Motor Learning
  • Human Movement Science
  • Cognitive Psychology

Background:

  • Understanding how individuals learn complex motor skills is crucial in fields like sports science and rehabilitation.
  • Feedback plays a vital role in motor skill acquisition, but the optimal type of feedback remains an area of investigation.
  • This study examines the effectiveness of different feedback references in a motor learning task.

Purpose of the Study:

  • To investigate the relative effectiveness of knowledge of results (KR) versus a criterion template (CT) as feedback references for motor learning.
  • To determine which feedback reference better facilitates the acquisition and retention of a spatially and temporally accurate arm movement.
  • To explore the underlying strategies subjects employ when provided with different feedback types.

Main Methods:

Keywords:
criterion template patternskinematic feedbackknowledge of performanceknowledge of resultsmotor learning

Related Experiment Videos

  • Forty-eight participants performed a right arm lever movement task requiring spatial and temporal accuracy towards four targets.
  • Feedback was provided as knowledge of performance (KP), with participants receiving one of four conditions: KR only, CT only, both KR and CT, or neither.
  • Acquisition (120 trials) was followed by immediate and delayed retention tests, and a reacquisition test, all without feedback except for the reacquisition phase.

Main Results:

  • Knowledge of results (KR) was superior to the criterion template (CT) for improving movement timing during acquisition.
  • KR also facilitated the development of the generalized motor program (GMP) associated with the most efficient movement pattern more effectively than CT.
  • Delayed retention tests indicated that KR led to better learning of the most efficient GMP compared to CT.

Conclusions:

  • Knowledge of results (KR) serves as a more effective reference than a criterion template (CT) for learning complex motor skills involving both spatial and temporal accuracy.
  • The superiority of KR is attributed to a calibration strategy, allowing for more robust motor program learning.
  • The findings have implications for designing effective feedback protocols in motor skill training and rehabilitation settings.