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Practice-induced SNARC: evidence from a null-SNARC sample.

Ezgi Palaz¹, Hakan Çetinkaya², Zeynep Tuncali³

¹Department of Psychology, Izmir University of Economics, 35330, Balçova, Izmir, Turkey. ezgipalaz@hotmail.com.

Cognitive Processing

|May 13, 2024

Summary

This summary is machine-generated.

Practicing with number-space associations can influence spatial numerical representations. Incompatible practices induced a reverse SNARC effect, suggesting experience shapes the mental number line (MNL).

Keywords:

Mental number line Practice effect Reading direction SNARC effect Spatial-numerical associations

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Area of Science:

Cognitive Psychology
Neuroscience
Spatial Cognition

Background:

The Spatial Numerical Association of Response Codes (SNARC) effect, where small numbers are associated with the left hand and large numbers with the right, is often linked to left-to-right reading habits.
However, the SNARC effect's prevalence and direction can vary across cultures and may be influenced by recent experiences.
This study investigates individuals from a left-to-right reading culture who do not typically exhibit the SNARC effect.

Purpose of the Study:

To investigate how mental number line (MNL)-compatible and MNL-incompatible practices influence the SNARC effect in individuals who do not naturally show it.
To isolate the impact of recent experiences on spatial numerical representations, independent of inherent reading direction biases.

Main Methods:

Reinvited participants from a previous study who showed no SNARC effect.
Exposed participants to either MNL-compatible or MNL-incompatible practice tasks.
Re-tested participants to assess changes in their SNARC effect.

Main Results:

Participants engaging in MNL-compatible practices showed no SNARC effect.
Participants engaging in MNL-incompatible practices exhibited a reverse SNARC effect.
These findings indicate that recent practices can modulate spatial numerical associations.

Conclusions:

The SNARC effect is not solely determined by reading direction but is significantly influenced by recent experiences and learned associations.
MNL-incompatible practices can induce a reversed SNARC effect, demonstrating the malleability of the mental number line.
Understanding practice effects is crucial for elucidating the mechanisms underlying spatial numerical cognition.