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Social contagion in primates: Moderating factors and significance for individuals and the group

Sandars, Georgia; Clay, Zanna

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Abstract

Social contagion, which involves behavioural and emotional state matching, is a crucial process for healthy social functioning. In humans as well as other species, it underpins key elements of social interaction, including empathy and social learning, thereby allowing individuals to effectively engage with others and their environment. Given their highly social nature and complex societies, studying social contagion in primates sheds light on the evolution of these processes and their significance in individuals' daily lives. Here, we review this research, and identify factors that are thought to moderate the presence of social contagion; namely age, sex, dominance rank and social closeness. Although there are few direct comparisons in the literature, patterns of contagion and the factors influencing them vary across species and behaviour, appearing to differ especially between emotional contexts. We therefore seek to categorise contagious behaviour along an affective dimension, highlighting when there are ambiguities, and then considering the distinct evolutionary benefits of positive and negative social contagion. We further consider the significance of social contagion within social learning, using this as a unifying framework to understand contagion. [Abstract copyright: Copyright © 2025. Published by Elsevier Ltd.]

Citation

Sandars, G., & Clay, Z. (2025). Social contagion in primates: Moderating factors and significance for individuals and the group. Neuroscience & Biobehavioral Reviews, 173, Article 106156. https://doi.org/10.1016/j.neubiorev.2025.106156

Journal Article Type Article
Acceptance Date Apr 13, 2025
Online Publication Date Apr 16, 2025
Publication Date 2025-06
Deposit Date May 20, 2025
Publicly Available Date May 20, 2025
Journal Neuroscience and biobehavioral reviews
Print ISSN 0149-7634
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 173
Article Number 106156
DOI https://doi.org/10.1016/j.neubiorev.2025.106156
Keywords Emotional Contagion, Mimicry, Social contagion, Primates, Social Learning
Public URL https://durham-repository.worktribe.com/output/3901141

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