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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

Two Attributes of Number Meaning.

Michael Wiemers¹, Harold Bekkering¹, Oliver Lindemann^2,3

¹1 Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands.

Experimental Psychology

|September 20, 2017

Summary

This study shows that number processing involves both spatial and size information, which operate independently. These distinct numerical associations may reflect different aspects of numerical meaning, such as ordinality and cardinality.

Keywords:

Gratton effect number processing shared magnitude representation size-congruity effect spatial-numerical associations

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Area of Science:

Cognitive Psychology
Neuroscience
Experimental Psychology

Background:

Number processing is known to interact with spatial and visual size codes.
The relationship between spatial-numerical associations and size-congruity effects remains unclear.

Purpose of the Study:

To investigate the simultaneous occurrence and interaction of space- and size-numerical congruency effects.
To determine if these effects interact within and across trials during numerical tasks.

Main Methods:

Participants performed a magnitude judgment task.
Stimuli included physically small or large digits presented to the left or right of screen center.
Reaction times were analyzed to assess congruency effects.

Main Results:

Space- and size-congruency effects were found to coexist and combine additively.
A selective sequential modulation of congruency effects was observed.
The size-congruity effect decreased after incongruent trials; the space-congruency effect was only influenced by prior space congruency.

Conclusions:

Spatial-numerical and within-magnitude associations appear independent.
These distinct couplings may reflect different attributes of numerical meaning, potentially related to ordinality and cardinality.