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Spatial associations in numerical cognition--from single digits to arithmetic.

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Summary

Spatial biases in number processing, like the spatial-numerical association of response codes (SNARC) effect, extend beyond simple tasks. Evidence suggests these associations are present during mental arithmetic, supporting the mental number line hypothesis.

Keywords:
Embodied cognitionMental arithmeticNumerical cognitionOperational momentumSNARCSpatial–numerical association of response codes

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Numerical Cognition

Background:

  • The spatial-numerical association of response codes (SNARC) effect is a dominant finding in number processing literature.
  • Spatial biases in number processing have been observed in various tasks and populations.

Purpose of the Study:

  • To investigate spatial biases in number processing beyond the original SNARC effect.
  • To explore spatial associations in mental arithmetic.
  • To review theoretical frameworks for understanding these spatial-numerical links.

Main Methods:

  • Examined spatial biases for single digits and number pairs using speeded parity tasks.
  • Extended the scope to include diverse tasks, measures, and populations.
  • Surveyed existing literature on spatial associations in mental arithmetic.

Main Results:

  • Spatial biases were confirmed for single digits and number pairs in the original parity task.
  • Evidence for spatial associations was found across different tasks, measures, and populations.
  • Emerging evidence indicates similar spatial associations during mental arithmetic.

Conclusions:

  • The mental number line hypothesis provides a useful framework for understanding spatial-numerical associations.
  • An embodied cognition approach also offers valuable insights for future research in this area.