Related Experiment Video
Updated: Apr 11, 2026

Brain Imaging Investigation of the Neural Correlates of Observing Virtual Social Interactions
Published on: July 6, 2011
Computational substrates of social value in interpersonal collaboration
Dominic S Fareri1, Luke J Chang2, Mauricio R Delgado3
1Gordon F. Derner Institute of Advanced Psychological Studies, Adelphi University, Garden City, New York 11530.
People preferentially collaborate with friends, driven by a "social value" reward signal linked to relationship closeness. This brain signal, computed in specific reward circuits, guides collaborative decisions in repeated interactions.
Area of Science:
- Neuroscience
- Social Psychology
- Computational Modeling
Background:
- Collaborative decisions involve risk but are crucial for relationship building.
- Understanding the neural mechanisms of social decision-making is essential.
Purpose of the Study:
- To investigate the mechanisms of collaborative decision-making.
- To test a computational model of social value in predicting collaboration.
- To explore the neural correlates of social value computation.
Main Methods:
- Utilized an iterated trust game with 26 participants.
- Compared investment behavior towards friends, confederates, and computers.
- Employed functional magnetic resonance imaging (fMRI) to measure brain activity.
- Developed and tested a computational model of social value.
Main Results:
- Participants invested more frequently with friends than with non-friends, irrespective of reinforcement.
- The computational model successfully predicted this preferential collaboration.
- Increased activity in the ventral striatum and medial prefrontal cortex correlated with the social value signal.
- Neural activity significantly predicted model-derived reward parameters.
Conclusions:
- Social value computation, influenced by relationship closeness, drives collaborative behavior.
- The brain's reward circuitry, specifically the ventral striatum and mPFC, instantiates this social value computation.
- This study provides a mechanistic account of how social relationships influence economic decisions.
More Related Videos
07:53Group Synchronization During Collaborative Drawing Using Functional Near-Infrared Spectroscopy
Published on: August 5, 2022
11:13The Social Dimension of Stress: Experimental Manipulations of Social Support and Social Identity in the Trier Social Stress Test
Published on: November 19, 2015
Related Concept Videos
Social Exchange Theory
Social Exchange Theory
Social Foundations of Self IV: Self in Digital Communication
Relationship Formation
Social Relationships and Well-Being
Factors Influencing Attraction V: Social Skills