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Updated: May 26, 2026
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Brain Imaging Investigation of the Neural Correlates of Observing Virtual Social Interactions
Published on: July 6, 2011
The social brain meets neuroimaging.
1Institute of Cognitive & Evolutionary Anthropology, University of Oxford, 64 Banbury Rd, Oxford OX2 6PN, UK. robin.dunbar@anthro.ox.ac.uk
Trends in Cognitive Sciences
|December 20, 2011
Summary
Individual differences in social network size correlate with brain structure, specifically the amygdala and theory of mind regions. This finding, observed in both humans and monkeys, supports the social brain hypothesis.
Area of Science:
- Neuroscience
- Primatology
- Social Cognition
Background:
- Human neuroimaging studies reveal a correlation between social network size and brain structure.
- Specifically, larger social networks are linked to increased amygdala volume and regions involved in theory of mind.
Purpose of the Study:
- To investigate if the correlation between social network size and brain structure extends to non-human primates.
- To provide further evidence for the social brain hypothesis across species.
Main Methods:
- Comparative neuroimaging analysis.
- Correlation studies examining social network size and brain region volumes in monkeys.
Main Results:
- A significant correlation was found between social network size and the volume of specific brain regions in monkeys.
- These findings mirror those observed in human studies.
Conclusions:
- The relationship between social complexity and brain structure is conserved across primate species.
- This study strengthens the social brain hypothesis by demonstrating its applicability beyond humans.
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