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Seeing Flames, Perceiving Quantity: Approximations of Fire Intensity Across Development.
1Department of Psychology, Morgan State University, Baltimore, MD 21251, USA.
Behavioral Sciences (Basel, Switzerland)
|October 29, 2025
Summary
Children aged 3-6 years improve at visually comparing fire intensity, similar to number and area. This suggests developing approximate magnitude representations enhance perception of dynamic visual quantities.
Area of Science:
- Cognitive Development
- Visual Perception
- Magnitude Representation
Background:
- Children's ability to discern non-symbolic visual quantities like number and area improves between ages 3-6.
- This improvement is linked to more precise approximate magnitude representations.
- It remains unclear if this developmental trend applies to other visual quantities, such as fire intensity.
Purpose of the Study:
- To investigate the developmental trend in young children's visual perception of fire intensity.
- To determine if approximate magnitude representations support the perception of dynamic visual quantities.
Main Methods:
- Over 70 children aged 3-6 years participated in a visual comparison task.
- Children judged which of two train engines displayed a more intense fire.
- The ratio of fire intensity differences was systematically varied across trials.
Main Results:
- Children's accuracy increased with larger ratios (greater differences in fire intensity).
- Performance significantly improved with age, with older children showing better discrimination.
- Results indicate sensitivity to visual fire intensity differences by age six.
Conclusions:
- Young children can visually compare fire intensity, demonstrating sensitivity to this dynamic quantity.
- Perceptual precision for fire intensity increases with age during early childhood.
- Approximate magnitude representations underpin the perception of ecologically relevant visual quantities.
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