Related Experiment Videos
Smiling together: Facial synchrony predicts distress relief
Yarden Avnor1, Lian Ibrahem1, Raz Keidar1
1Department of Psychology, University of Haifa.
Emotion (Washington, D.C.)
|August 10, 2026
Summary
Smile synchrony, the alignment of smiles during conversations, helps reduce sadness. This effect was observed during distressing emotional sharing, indicating its role in distress regulation.
Area of Science:
- Psychology
- Social Psychology
- Nonverbal Communication
Background:
- Facial synchrony, or emotional expression alignment, is studied but its function in emotion regulation is unclear.
- Previous research has not fully explored the role of smile synchrony in real-life emotional distress.
- Understanding nonverbal emotional regulation is crucial for interpersonal dynamics.
Purpose of the Study:
- To investigate if smile synchrony facilitates emotional relief during distressing social interactions.
- To determine if smile synchrony acts as a pathway for distress regulation in dyadic communication.
- To examine the role of smile synchrony in reducing sadness during emotional sharing.
Main Methods:
- Utilized an automated facial expression analysis platform to analyze video recordings of 64 dyads (128 participants).
- Recorded participants sharing emotional events in both distressing and nondistressing conditions.
- Employed leader-follower analysis to examine the dynamics of smile synchrony.
Main Results:
- Smile synchrony levels were comparable across distressing and nondistressing conditions.
- Smile synchrony significantly predicted reduced sadness in targets only during the distressing condition.
- The impact of smile synchrony on distress was observed regardless of who initiated the synchrony.
Conclusions:
- Smile synchrony plays a distinct role in regulating distress within dyadic interactions.
- Smiling synchrony can serve as a mechanism for alleviating sadness during emotionally charged conversations.
- Findings highlight the importance of nonverbal emotional alignment in interpersonal distress regulation.