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How Does Working Memory Enable Number-Induced Spatial Biases?

Elger Abrahamse1, Jean-Philippe van Dijck1, Wim Fias1

  • 1Department of Experimental Psychology, University of Ghent Ghent, Belgium.

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|July 23, 2016
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Summary
This summary is machine-generated.

Spatial associations with numbers are well-documented but debated. This study investigates if working memory alone can explain these number-space links, proposing specific mechanisms for future research.

Keywords:
SNARC effectnumber-space associationsnumerical cognitionserial orderworking memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Psycholinguistics

Background:

  • Number-space associations are a robust phenomenon in cognitive science.
  • Two primary explanations exist: the intrinsic Mental Number Line (MNL) account and a working memory (WM) account.
  • The MNL posits spatial codes are inherent to number representations, while the WM account suggests they arise during task-specific coordination.

Purpose of the Study:

  • To evaluate the sufficiency of a pure working memory account for explaining number-space associations.
  • To delineate the potential components of a working memory account for number-space associations.
  • To provide empirical targets for testing the working memory account's feasibility.

Main Methods:

  • Theoretical exploration and conceptual analysis of existing literature.
  • Comparison of the explanatory power of the Mental Number Line versus a working memory account.
  • Development of a detailed working memory model for number-space associations.

Main Results:

  • A pure Mental Number Line account may not fully account for the complexity of observed number-space associations.
  • A working memory account, with specific proposed building blocks, shows potential to explain these associations.
  • The study outlines concrete empirical avenues for testing the proposed working memory mechanisms.

Conclusions:

  • Working memory plays a crucial role in generating spatial codes for numbers, potentially offering a more comprehensive explanation than the traditional Mental Number Line.
  • Further empirical research is needed to validate the proposed working memory building blocks and their role in number-space associations.
  • This work reframes the debate by highlighting the dynamic, task-dependent nature of number-space representations.