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Visual short term memory related brain activity predicts mathematical abilities.

Aubrée Boulet-Craig1, Philippe Robaey2, Karine Lacourse2

  • 1Department of Psychology, University of Montreal.

Neuropsychology
|April 7, 2017
PubMed
Summary

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Brain activity during visual short-term memory (VSTM) retention correlates with mathematical abilities. This suggests VSTM plays a role in numerical cognition, potentially informing cognitive interventions.

Area of Science:

  • Cognitive Neuroscience
  • Neuroscience of Mathematics

Background:

  • Visual short-term memory (VSTM) capacity and mathematical abilities are known to be related.
  • Both VSTM and mathematical processes involve overlapping brain regions, particularly in the parietal cortex and intraparietal sulcus.

Purpose of the Study:

  • To investigate the direct association between parieto-occipital brain activity during VSTM retention and mathematical performance.
  • To explore the neuronal underpinnings linking VSTM to mathematical operations and reasoning.

Main Methods:

  • Magnetoencephalography (MEG) was used to measure brain activity during VSTM memory maintenance in 19 healthy adults.
  • Mathematical abilities and VSTM capacity were assessed.
  • Linear regressions analyzed the relationship between VSTM-related brain activity and mathematical skills.

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Main Results:

  • The amplitude of parieto-occipital brain activity during visual information retention was significantly correlated with performance in mathematical reasoning.
  • This brain activity also showed a relationship with calculation fluency.

Conclusions:

  • Brain activity during the VSTM retention phase is demonstrably associated with mathematical abilities.
  • The findings highlight the contribution of VSTM processes to numerical cognition and suggest potential targets for cognitive interventions.