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Intrusion errors in visuospatial working memory performance.

Cesare Cornoldi1, Nicola Mammarella

  • 1Departimento di Psicologia Generale, University of Padova, Italy. cesare.cornoldi@unipd.it

Memory (Hove, England)
|February 18, 2006
PubMed
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Active visuospatial working memory failures stem from difficulty inhibiting activated information. Participants made more intrusion errors, especially when attending to irrelevant locations, suggesting impaired inhibition mechanisms.

Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Visuospatial working memory is crucial for complex cognitive tasks.
  • Failures in working memory are often attributed to interference from activated information.

Purpose of the Study:

  • To investigate the role of inhibition in active visuospatial working memory failures.
  • To test the hypothesis that difficulty avoiding intrusions underlies task failure.

Main Methods:

  • Two experiments involved participants processing series of locations on a 4x4 matrix.
  • Participants recalled only the final location of each series.
  • An attention manipulation involved tapping irrelevant locations.

Main Results:

  • Errors due to previously activated locations (intrusions) were more frequent than errors for new locations (inventions).

Related Experiment Videos

  • Increased attention to irrelevant locations significantly elevated intrusion errors.

    • Conclusions:

    • Active visuospatial working memory failures are linked to impaired inhibition of activated information.
    • These findings support models of working memory emphasizing inhibitory control mechanisms.