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Published on: September 28, 2018
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The dorsomedial prefrontal cortex prioritizes social learning during rest
Courtney A Jimenez1, Meghan L Meyer1
1Department of Psychology, Columbia University, New York, NY 10027.
Summary
The human brain prioritizes social learning by default. The dorsomedial prefrontal cortex (DMPFC) in the default network enhances memory for social information during rest.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Social Cognition
Background:
- Humans are inherently social, relying on cooperation for survival and thriving.
- Understanding the brain mechanisms that facilitate rapid social learning is crucial for navigating complex social environments.
Purpose of the Study:
- To investigate if the default network prioritizes social learning during memory consolidation.
- To examine the role of the dorsomedial prefrontal cortex (DMPFC) in social memory.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was used to monitor brain activity.
- Participants viewed social and nonsocial scenes from the documentary *Samsara*.
- Memory performance was assessed using a surprise recognition test after a rest period.
Main Results:
- Participants demonstrated superior memory for social scenes compared to nonsocial scenes.
- Neural pattern reinstatement in the DMPFC during rest predicted enhanced social memory.
- The greatest neural reinstatement occurred during early rest, supporting a prioritization account.
Conclusions:
- The default network, particularly the DMPFC, actively prioritizes social information processing for memory consolidation.
- Findings advance theories of memory consolidation and default network function.
- The study highlights the brain's innate drive to understand the social world.
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