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All together now: when dissociations between knowledge and action disappear.

Y Munakata1, B E Yerys

  • 1Department of Psychology, University of Denver, CO 80208, USA. munakata@du.edu

Psychological Science
|July 31, 2001
PubMed
Summary

Children’s knowledge-action gaps, often seen in development and after brain injury, may not be real. When cognitive tasks better match knowledge and action demands, these gaps disappear, suggesting graded knowledge representations.

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Area of Science:

  • Cognitive Science
  • Developmental Psychology
  • Neuropsychology

Background:

  • Knowledge-action dissociations are observed in children and individuals with brain damage, suggesting separate cognitive systems.
  • These dissociations have historically supported theories of distinct knowledge and action systems and their developmental trajectories.

Purpose of the Study:

  • To investigate the underlying mechanisms of knowledge-action dissociations in children using a card-sorting task.
  • To challenge traditional interpretations of dissociations by re-evaluating task demands and cognitive conflict.

Main Methods:

  • Children completed a card-sorting task assessing their understanding of rules and their actual sorting performance.
  • Task parameters were adjusted to equate the cognitive conflict required for correct knowledge and action responses.

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Main Results:

  • When task demands for knowledge and action were closely matched, systematic dissociations between children's knowledge and actions were not observed.
  • The findings indicate that apparent knowledge-action gaps may be artifacts of task design rather than fundamental cognitive separations.

Conclusions:

  • Standard interpretations of knowledge-action dissociations require re-evaluation.
  • An alternative model positing graded knowledge representations offers a more parsimonious explanation for observed performance patterns.