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Related Experiment Videos

Counting on working memory in arithmetic problem solving

R H Logie1, K J Gilhooly, V Wynn

  • 1Department of Psychology, University of Aberdeen, Kings College, Scotland.

Memory & Cognition
|July 1, 1994
PubMed
Summary
This summary is machine-generated.

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Working memory is crucial for mental addition. The central executive and subvocal rehearsal components support calculation accuracy and problem-solving, while visuospatial resources aid approximations.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Educational Psychology

Background:

  • Mental calculation is a vital everyday skill.
  • Working memory's role in mental arithmetic is not fully understood.
  • Existing research focuses on procedural learning, not working memory components.

Purpose of the Study:

  • To investigate the specific roles of working memory components in mental addition.
  • To differentiate the impact of auditory versus visual number presentation on working memory demands.
  • To explore how different working memory tasks interfere with mental arithmetic.

Main Methods:

  • Dual-task methodology was employed in two experiments.
  • Experiment 1: Auditory presentation of two-digit numbers with concurrent tasks (letter generation, articulatory suppression, hand movement, irrelevant pictures).

Related Experiment Videos

  • Experiment 2: Visual presentation of two-digit numbers with similar concurrent tasks.

    • Main Results:

    • Concurrent random letter generation caused the most significant disruption in mental addition for both auditory and visual presentations.
    • Auditory presentation was more susceptible to disruption than visual presentation.
    • Subvocal rehearsal (articulatory suppression) aided accuracy, while visuospatial tasks showed minimal impact.

    Conclusions:

    • The central executive component of working memory is critical for mental addition calculations and approximate answers.
    • Subvocal rehearsal is essential for maintaining accuracy in mental arithmetic.
    • Visuospatial resources may contribute to the approximation aspect of mental addition.