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Development of spatial representation of numbers: a study of the SNARC effect in Chinese children
Tao Yang1, Chuansheng Chen, Xinlin Zhou
1Institute of Educational Statistics and Measurement, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China.
Insights
Chinese children, even in kindergarten, show automatic spatial number representations (spatial-numerical association of response codes or SNARC effect). Surprisingly, this number cognition development showed minimal change across age groups.
Area of Science:
- Cognitive Development
- Developmental Psychology
- Numerical Cognition
Background:
- The spatial representation of numbers is a key aspect of numerical cognition.
- The spatial-numerical association of response codes (SNARC) effect demonstrates an automatic link between number magnitude and spatial location.
- Understanding the developmental trajectory of the SNARC effect is crucial for insights into early number cognition.
Purpose of the Study:
- To investigate the developmental trajectory of numerical-spatial representation in Chinese children.
- To examine the emergence and developmental changes of the spatial-numerical association of response codes (SNARC) effect.
- To explore cross-cultural differences in the early development of number cognition.
Main Methods:
- Utilized the standard parity judgment task.
- Included 314 healthy, right-handed Chinese participants, ranging from kindergarteners to adults.
- Analyzed the presence and magnitude of the SNARC effect across different age groups.
Main Results:
- All age groups, including kindergarteners, exhibited a significant or marginally significant SNARC effect.
- This indicates the presence of automatic spatial number representations from a very young age.
- The magnitude of the SNARC effect did not significantly change with age, suggesting a stable developmental pattern.
Conclusions:
- Chinese children develop automatic spatial representations of numbers early in development.
- The developmental trajectory of the SNARC effect appears to be relatively stable from kindergarten onwards.
- Findings contribute to understanding number cognition development and potential cross-cultural variations.
Abstract:
Using the standard parity judgment task, this study investigated the development of numerical-spatial representation. Participants were 314 healthy right-handed Chinese children (from kindergarteners to sixth graders) and adults. The results revealed that all age groups showed a significant (or marginally significant in the case of first graders) SNARC (spatial-numerical association of response codes) effect, indicating that Chinese children as young as kindergarteners already had developed automatic spatial representations of numbers (or the mental number line). Surprisingly, however, the size of the SNARC effect did not show much developmental change. These results are discussed in the context of the literature on spatial representations of numbers and on cross-cultural differences in early development of number cognition.
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