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Updated: Jun 14, 2026

Psychophysiological Assessment of the Effectiveness of Emotion Regulation Strategies in Childhood
Published on: February 11, 2017
Toddlers' understanding of peers' emotions
Sara R Nichols1, Margarita Svetlova, Celia A Brownell
1University of Pittsburgh, Department of Psychology, 210 South Bouquet Street, Pittsburgh, PA 15260, USA. srn1@pitt.edu
Insights
Infants aged 12-24 months use peer emotions to guide toy play. Younger infants avoid toys with peer-expressed emotions, while 24-month-olds engage more with toys after negative peer reactions, especially if they have siblings.
Area of Science:
- Developmental Psychology
- Social Cognition
- Infant Behavior
Background:
- The second year of life is crucial for developing social understanding and peer interaction skills.
- Infants show increasing interest in peers and begin to interpret adult emotional cues.
Purpose of the Study:
- To investigate if infants (12, 18, 24 months) use peer emotional signals to regulate their toy play.
- To examine developmental changes in social referencing concerning peer affect.
Main Methods:
- A social-referencing paradigm was employed with infants and child confederates.
- Infants observed peers expressing positive, negative, or neutral emotions toward toys.
- Subsequent infant play behavior with the toys was recorded.
Main Results:
- 12-month-olds decreased play with toys eliciting peer positive or negative emotions.
- 18-month-olds showed unsystematic responses.
- 24-month-olds increased play with toys after observing negative peer affect.
- Children with siblings showed a typical social-referencing fear response, decreasing play.
Conclusions:
- Infants' use of peer emotional cues for behavior regulation develops throughout the second year of life.
- Sibling experience may influence social referencing responses.
- Findings highlight the interplay between social understanding and peer engagement in early development.
Abstract:
The second year of life sees dramatic developments in infants' ability to understand emotions in adults alongside their growing interest in peers. In this study, the authors used a social-referencing paradigm to examine whether 12-, 18-, and 24-month-old children could use a peer's positive or negative emotion messages about toys to regulate their own behavior with the toys. They found that 12-month-olds decreased their play with toys toward which a peer had expressed either positive or negative emotion compared with play following a peer's neutral attention toward a toy. Also, 18-month-olds did not respond systematically, but 24-month-old children increased their toy play after watching a peer display negative affect toward the toy. Regardless of their age, children with siblings decreased their play with toys toward which they had seen a peer display fear, the typical social-referencing response. The authors discuss results in the context of developmental changes in social understanding and peer interaction over the second year of life.
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