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Working Memory

Working Memory

Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...

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Mirror numbers activate quantity representations, but show no SNARC effect: A working memory explanation.

Gianluca Marzola¹, Dale J Cohen²

¹Department of Philosophy and Communication, University of Bologna.

Journal of Experimental Psychology. Human Perception and Performance

|March 20, 2023

Summary

This summary is machine-generated.

The Spatial-Numerical Association of Response Code (SNARC) effect shows numbers are mentally mapped left-to-right. This study found that while quantities of mirror numbers are accessed, only normal numbers exhibit this left-to-right spatial organization.

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Area of Science:

Cognitive Psychology
Numerical Cognition
Spatial Representation

Background:

The Spatial-Numerical Association of Response Code (SNARC) effect links number magnitude to spatial response codes.
The dominant hypothesis suggests a left-to-right Mental Number Line for quantity representation.

Purpose of the Study:

To investigate the spatial representation of quantity using mirror numbers, which lack inherent left-to-right organization.
To determine if numerical distance and SNARC effects apply to both normal and mirror numbers across different tasks.

Main Methods:

Experiments 1 and 2: Magnitude classification task assessing numerical distance and SNARC effects for normal and mirror numbers.
Experiment 3: Mirror judgment task to assess SNARC effects without semantic processing.
Analysis of physical similarity's impact on performance.

Main Results:

Participants accessed the quantity of both normal and mirror numbers.
Spatial organization from left-to-right was observed only for normal numbers.
Physical similarity between number stimuli predicted participant performance.

Conclusions:

Quantity access occurs for both normal and mirror numbers, but spatial mapping is specific to conventionally organized numbers.
The Working Memory account provides the most robust explanation for the observed SNARC effects and numerical processing patterns.