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Bidirectional Mapping Between the Symbolic Number System and the Approximate Number System
Lijuan Wang1, Xiao Liang1, Yueyang Yin1
1School of Psychology, Northeast Normal University, Changchun, Jilin, PR China.
Experimental Psychology
|January 21, 2022
Summary
This study investigated the bidirectional mapping between the approximate number system (ANS) and symbolic number system (SNS). Findings reveal an asymmetry, with stronger connections from ANS to SNS than vice versa, impacting numerical cognition development.
Area of Science:
- Cognitive Psychology
- Developmental Psychology
- Neuroscience
Background:
- Previous research explored the symmetry of bidirectional mapping between the approximate number system (ANS) and symbolic number system (SNS).
- The developmental significance of this bidirectional mapping in numerical cognition has been underexplored.
- Hypotheses suggest age-related differences in connection strength between ANS and SNS.
Purpose of the Study:
- To investigate the symmetry of bidirectional mapping between the ANS and SNS.
- To determine if the connection strength from ANS to SNS is equivalent to SNS to ANS.
- To explore the role of this mapping in numerical cognition development.
Main Methods:
- Utilized sequence priming paradigms to examine ANS-SNS and SNS-ANS mapping.
- Employed two types of dot array materials: extensive and intensive.
- Measured priming effects to infer connection strengths.
Main Results:
- A stable negative priming effect was observed in the ANS-SNS priming task.
- No significant priming effect was found in the SNS-ANS priming task.
- Sensory cues (extensive/intensive) influenced ANS-SNS mapping but not the priming task.
Conclusions:
- The bidirectional mapping between ANS and SNS is not symmetrical.
- The connection from ANS to SNS appears stronger or more direct than SNS to ANS.
- This asymmetry offers valuable insights into the development of numerical cognition.
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