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Social Facilitation

Social Facilitation

Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.

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Related Experiment Video

Updated: Feb 17, 2026

Measuring Neural and Behavioral Activity During Ongoing Computerized Social Interactions: An Examination of Event-Related Brain Potentials

Measuring Neural and Behavioral Activity During Ongoing Computerized Social Interactions: An Examination of Event-Related Brain Potentials

Published on: November 15, 2014

Distributed Neural Activity Patterns during Human-to-Human Competition.

Matthew Piva¹, Xian Zhang², J Adam Noah²

¹Interdepartmental Neuroscience Program, Yale School of Medicine, Yale University, New Haven, CT, United States.

Frontiers in Human Neuroscience

|December 9, 2017

Summary

This summary is machine-generated.

This study reveals a frontal-parietal neural network active during live human-to-human social cognition. Using functional near-infrared spectroscopy, researchers found increased within-brain and across-brain neural synchrony during face-to-face competition.

Keywords:

coherence connectivity functional near-infrared spectroscopy hyperscanning social interaction temporal-parietal junction

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Published on: January 6, 2011

Area of Science:

Neuroscience
Social Cognition
Human Interaction

Background:

Conventional neuroimaging often studies individuals, limiting understanding of dyadic/group social cognition.
Face-to-face interaction's neural underpinnings remain largely unexplored.
Previous fMRI studies show individual sensitivity to human-vs-computer conditions.

Purpose of the Study:

To identify neural mechanisms in face-to-face interpersonal competition.
To investigate neural activity within and across brains during live social interaction.
To explore if findings from single-subject studies extend to dyadic interactions.

Main Methods:

Utilized functional near-infrared spectroscopy (fNIRS) to measure hemodynamic signals in pairs.
Subjects engaged in a competitive poker task against humans or computers.
Analyzed within-brain functional connectivity (seed: angular gyrus) and across-brain neural coherence.

Main Results:

Increased functional connectivity between angular gyrus (AG) and dlPFC, SCA, and SS during human-human interaction.
Elevated activity in left dlPFC and frontopolar areas observed.
Across-brain analyses revealed neural synchrony between dlPFC-SMG/SS and AG-FG/SMG.

Conclusions:

Identified a frontal-parietal neural complex (TPJ, dlPFC, SCA, SS, FG) more active in human-to-human social cognition.
Demonstrated increased within-brain functional connectivity and across-brain coherence during live interaction.
Supports a model of functional integration of social and strategic information in face-to-face competition.