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Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)
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High-performers use the phonological loop less to process mental arithmetic during working memory tasks.

Yuki Otsuka1, Naoyuki Osaka

  • 1a Kokoro Research Center , Kyoto University , Kyoto , Japan.

Quarterly Journal of Experimental Psychology (2006)
|November 12, 2014
PubMed
Summary

High-performers in complex mental arithmetic rely less on the phonological loop, using their central executive (CE) to manage working memory capacity effectively. Low-performers are more susceptible to working memory load.

Keywords:
Central executiveComplex mental arithmeticIndividual differencesPhonological loopWorking memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Working memory is crucial for complex cognitive tasks like mental arithmetic.
  • Individual differences in working memory capacity influence performance in complex mental arithmetic.

Purpose of the Study:

  • To investigate how different working memory components (central executive, phonological loop, visuospatial sketchpad) affect complex mental arithmetic performance.
  • To compare the impact of working memory load on high- and low-performers in mental arithmetic.

Main Methods:

  • Dual-task methodology was employed to assess working memory load.
  • Participants performed two-digit addition under central executive (random tapping), phonological loop (articulatory suppression), and visuospatial sketchpad (spatial tapping) load conditions.
  • Experiment 2 used a shorter number presentation time for high-performers.

Main Results:

  • Low-performers exhibited increased errors under central executive and phonological loop load.
  • High-performers showed increased errors only under central executive load.
  • Consistent patterns were observed across both experiments, even with reduced presentation times.

Conclusions:

  • High-performers may strategically minimize phonological loop engagement in complex mental arithmetic.
  • The central executive appears to play a key role in enabling efficient working memory strategy selection for high-performers.
  • Working memory component utilization differs between high- and low-performers in complex mental arithmetic.