The impact of emotion on numerical estimation: A developmental perspective

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Neuroscience

Background:

• Emotional stimuli can influence adult numerical judgments, causing underestimation.
• It remains unclear if these numerical biases appear early in development or are learned.
• Understanding numerical approximation in children is crucial due to links with math achievement.

Purpose of the Study:

• To investigate if children exhibit numerical underestimation with emotional stimuli.
• To examine developmental differences in numerical biases related to affect.
• To explore the precision of numerical judgments in children and adults under emotional contexts.

Main Methods:

• Children (6-10 years) and adults performed a numerical bisection task with happy and neutral facial stimuli.
• Response accuracy and precision were analyzed in relation to emotional valence.
• A second experiment tested adult precision with challenging numerical discriminations and emotional stimuli.

Main Results:

• Children, similar to adults, underestimated numerical values following happy faces compared to neutral faces.
• Children demonstrated significantly enhanced response precision with emotional stimuli, unlike adults.
• Adults also showed increased precision with emotional stimuli during more difficult numerical tasks.

Conclusions:

• Children, like adults, exhibit numerical underestimation influenced by emotional stimuli.
• The findings reveal an early developmental emergence of affective influences on numerical cognition.
• Emotional stimuli not only bias numerical judgments but can also enhance response precision during development.