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Related Experiment Video

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Multimedia Battery for Assessment of Cognitive and Basic Skills in Mathematics (BM-PROMA)

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Published on: August 28, 2021

Are Arabic and verbal numbers processed in different ways?

Roi Cohen Kadosh¹, Avishai Henik, Orly Rubinsten

¹Department of Psychology and Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer-Sheva, Israel. r.cohenkadosh@ucl.ac.uk

Journal of Experimental Psychology. Learning, Memory, and Cognition

|November 5, 2008

Summary

This study found that number notation, whether Arabic or verbal, impacts numerical processing. Separate representations for Arabic and verbal numbers suggest distinct comparison mechanisms are needed in current models.

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Area of Science:

Cognitive Psychology
Numerical Cognition

Background:

Understanding how different number notations (Arabic numerals vs. verbal numbers) influence cognitive processing is crucial.
Existing models of numerical processing may not fully account for notation-specific effects.

Purpose of the Study:

To investigate the effects of Arabic versus verbal number notation on numerical processing.
To determine if irrelevant numerical dimensions elicit different processing effects based on notation.
To explore the implications for current models of numerical cognition.

Main Methods:

Four experiments were conducted comparing Arabic and verbal number notations.
Manipulated numerical distance and physical size as relevant and irrelevant dimensions.
Controlled for parameters like discriminability, variability, and experimental design.

Main Results:

Notation interacted with the numerical distance effect.
Irrelevant physical size (size congruity effect) impacted processing for both notations, but less so for verbal numbers.
Size congruity effects emerged for irrelevant verbal numbers when physical size processing was more difficult.

Conclusions:

Number notation significantly affects numerical processing.
Arabic and verbal numbers appear to be represented separately in the brain.
Current numerical processing models may require separate comparison mechanisms for different number notations.