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Published on: May 5, 2015
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Cognitive bridge between geometric and numerical learning in monkeys
Jessica F Cantlon1, Logan R Brownell1, Jialin Li1
1Psychology Department, Carnegie Mellon University, Pittsburgh, PA 15213.
Summary
Monkeys learned both numerical and spatial concepts, showing that spatial learning supports numerical understanding. This suggests a shared evolutionary basis for these cognitive abilities in primates.
Area of Science:
- Cognitive Science
- Comparative Psychology
- Neuroscience
Background:
- Human development shows strong links between numerical and spatial cognition, often influenced by cultural tools like number lines.
- Emerging evidence suggests these connections may have evolutionary roots, appearing even without cultural tools.
Purpose of the Study:
- To investigate how primates learn spatial and numerical concepts without prior task experience.
- To explore the interplay between spatial and numerical learning in non-human primates.
Main Methods:
- Task-naïve monkeys were trained on both numerical and geometric tasks.
- Learning trajectories and discriminability effects were analyzed.
- Cross-lagged analyses examined the predictive relationship between learning in the two tasks.
Main Results:
- Monkeys successfully learned both numerical and geometric concepts.
- Abstract quantitative features were better predictors of performance than visual similarity, indicating abstract processing.
- Learning in the geometry task significantly predicted future gains in numerosity performance.
Conclusions:
- Spatial and numerical learning in primates depend on interconnected cognitive processes.
- These findings suggest an evolutionary foundation for the human numerical-spatial cognitive bridge.
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