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Contextual interference effects with two tasks.

Dominic A Simon1

  • 1Department of Psychology, MSC 3452, New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003-8001, USA. domsimon@nmsu.edu

Perceptual and Motor Skills
|October 9, 2007
PubMed
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Practicing movement tasks in a random order, rather than blocked, improved long-term retention and recall of motor skills. Blocked practice led to better short-term performance, but random practice enhanced learning for complex motor skills.

Area of Science:

  • Motor Learning
  • Cognitive Psychology

Background:

  • The contextual interference effect is a well-researched phenomenon in motor learning.
  • Typically, studies involve practicing three or more movement patterns.

Purpose of the Study:

  • To investigate if the contextual interference effect occurs with only two practiced movement patterns.
  • To compare acquisition and retention performance between blocked and random practice schedules for multisegment movement tasks.

Main Methods:

  • Participants practiced two multisegment movement tasks under either blocked or random schedules.
  • Performance was assessed during acquisition and at a 24-hour retention test.
  • Learners' predictions of their retention performance were also recorded.

Main Results:

Related Experiment Videos

  • Blocked practice groups showed better performance during the acquisition phase.
  • Random practice groups exhibited significantly smaller errors during the 24-hour retention test.
  • Random practice also led to superior recall of movement pattern details.

Conclusions:

  • The contextual interference effect is observable even when practicing only two movement patterns.
  • Random practice schedules enhance long-term motor skill retention and recall compared to blocked schedules.
  • Learners' subjective predictions of retention performance did not accurately reflect the observed group differences in learning.