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Is the SNARC a boojum?

Dorothy Munkenbeck Fragaszy1

  • 1University of Georgia.

Journal of Comparative Psychology (Washington, D.C. : 1983)
|August 6, 2019
PubMed
Summary

Psychologists study how spatial representations influence numerical judgments. Research shows people use a mental number line, leading to the Spatial Numerical Association of Response Codes (SNARC) effect.

Area of Science:

  • Cognitive Psychology
  • Numerical Cognition
  • Psycholinguistics

Background:

  • For 50 years, psychologists have investigated spatial representations in numerical judgments.
  • Frank Restle's (1970) work initiated research into how humans judge numerical magnitude.
  • The concept of a mental number line emerged from early studies on numerical judgment.

Purpose of the Study:

  • To explore the role of spatial representations in numerical cognition.
  • To discuss the Spatial Numerical Association of Response Codes (SNARC) effect.
  • To consider the potential evolution or vanishing of the SNARC effect.

Main Methods:

  • Review of historical psychological research on numerical judgment.
  • Analysis of experimental findings related to response times in numerical tasks.

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  • Theoretical discussion on the mental number line and SNARC effect.

    • Main Results:

    • Evidence suggests humans utilize a mental number line for numerical judgments.
    • The Spatial Numerical Association of Response Codes (SNARC) effect demonstrates a link between spatial representation and number processing.
    • Response latencies in numerical tasks are influenced by the mental number line.

    Conclusions:

    • The mental number line is a key concept in understanding numerical cognition.
    • The SNARC effect highlights the interplay between spatial and numerical processing.
    • Further research may reveal more complex models beyond the current understanding of the SNARC effect.