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Related Experiment Video

Updated: Sep 18, 2025

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Group identification drives brain integration for collective performance.

Enhui Xie1, Shuyi Zha1, Yiyang Xu1

  • 1Shanghai Key Laboratory of Mental Health and Psychological Crisis Intervention, Affiliated Mental Health Center (ECNU), School of Psychology and Cognitive Science, East China Normal University, Shanghai, China.

Elife
|June 24, 2025
PubMed
Summary
This summary is machine-generated.

Strong group identification enhances individual and collective problem-solving performance. This is linked to brain activity in the dorsolateral prefrontal cortex (DLPFC) and orbitofrontal cortex (OFC), revealing key neural mechanisms.

Keywords:
group decision-makinghumanneurosciencesocial interaction

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Area of Science:

  • Neuroscience
  • Social Psychology
  • Cognitive Science

Background:

  • Group identification can influence collective behavior and performance.
  • Neural mechanisms underlying this influence are not well understood.

Purpose of the Study:

  • To investigate how group identification impacts collective problem-solving.
  • To explore the neural underpinnings of group identification's effect on performance.

Main Methods:

  • Employed single-brain activation and multi-brain synchronization analyses.
  • Utilized a murder mystery case for collective problem-solving tasks.
  • Examined brain activity in the dorsolateral prefrontal cortex (DLPFC) and orbitofrontal cortex (OFC).

Main Results:

  • High group identification correlated with better individual performance, linked to DLPFC activation.
  • Enhanced collective performance in high-identification groups was associated with OFC neural synchronization.
  • DLPFC-OFC connectivity was crucial for linking individual and collective performance.

Conclusions:

  • Group identification significantly affects collective decision-making.
  • A neural model involving DLPFC and OFC explains how group identification influences collective problem-solving.
  • Findings offer insights into group interaction dynamics and performance.