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Related Experiment Video

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Using Virtual Reality to Transfer Motor Skill Knowledge from One Hand to Another
05:12

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Published on: September 18, 2017

Transfer effects of practice for simple alternating movements.

Susan Koeneke1, Christian Battista, Lutz Jancke

  • 1Department of Psychology, Neuropsychology, University of Zurich, Switzerland. s.koeneke@psychologie.uzh.ch

Journal of Motor Behavior
|June 11, 2009
PubMed
Summary

Practice effects transfer between fingers, even across hands, demonstrating motor learning plasticity. Finger tapping tasks revealed consistent improvement in unpracticed digits, with no hand dominance observed in transfer effects.

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Area of Science:

  • Motor control and learning
  • Cognitive neuroscience
  • Human movement science

Background:

  • Transfer of practice effects are crucial for understanding motor learning.
  • Previous research often uses simple or complex tasks, but intermediate difficulty tasks are less explored.
  • Investigating intermanual and intramanual transfer provides insights into the neural mechanisms of motor skill acquisition.

Purpose of the Study:

  • To investigate intermanual and intramanual transfer of practice effects using a finger tapping task of intermediate difficulty.
  • To determine if practice effects transfer from a trained middle finger to other digits within the same hand (intramanual) and to digits on the contralateral hand (intermanual).
  • To examine potential asymmetries in transfer effects based on the trained hand and to identify distinct functional clusters of digits.

Main Methods:

  • Thirty participants engaged in a 2-week finger tapping training regimen, practicing 6 days per week.
  • Training involved either the left or right middle finger in a between-subject design.
  • Control groups were used for comparison, and improvements in practiced and unpracticed digits were measured.

Main Results:

  • Significant improvement was observed in the unpracticed middle finger of both hands compared to controls.
  • All other unpracticed digits also showed significant improvement, indicating broad transfer.
  • No significant differences were found in the strength of transfer between intramanual and intermanual conditions.
  • No asymmetry of transfer effects was detected based on the trained hand.
  • Digits clustered into two groups based on speed and regularity: (1) thumb, index, and middle fingers; (2) ring and small fingers.

Conclusions:

  • Motor practice effects demonstrate significant transfer across fingers and hands, highlighting the brain's adaptability in motor learning.
  • The study did not find evidence for hand asymmetry in transfer effects for this task.
  • Digit performance suggests distinct functional groupings, with the thumb, index, and middle fingers exhibiting superior speed and regularity.