Preschool-Aged Children Jointly Consider Others' Emotional Expressions and Prior Knowledge to Decide When to Explore

Area of Science:

• Developmental Psychology
• Cognitive Science
• Social Cognition

Background:

• Children frequently encounter emotional expressions in their daily lives.
• Understanding the role of emotions in children's causal inference and exploration is crucial for developmental research.

Purpose of the Study:

• To investigate if preschool-aged children utilize others' emotional expressions to infer unknown causal functions.
• To determine if emotional cues guide children's exploration of novel objects.

Main Methods:

• 112 preschool-aged children (3.0-4.9 years) participated in the study.
• Children observed an adult interacting with a novel toy after learning one of its causal functions.
• Emotional expressions (surprise, happiness) were varied during adult-child interactions.

Main Results:

• Children explored the toy more when the adult expressed surprise compared to happiness (Experiment 1).
• This effect was contingent on the adult's prior knowledge of the toy's function (Experiment 2).
• Children selectively interpreted adult surprise as vicarious prediction error.

Conclusions:

• Preschoolers consider an adult's knowledge state when interpreting their emotional expressions.
• Surprise signals potential new information, guiding children's exploratory behavior.
• Emotional expressions serve as a mechanism for social learning and exploration in young children.