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When gratitude and cooperation between friends affect inter-brain connectivity for EEG.

Michela Balconi1,2, Giulia Fronda3,4, Maria Elide Vanutelli2,5

  • 1Department of Psychology, Catholic University of Milan, Milan, Italy.

BMC Neuroscience
|April 9, 2020
PubMed
Summary

Gift exchange enhances interpersonal cooperation and improves task accuracy. This study observed increased brain activity and neural connectivity, suggesting a neurobiological basis for the social benefits of giving.

Keywords:
CooperationDLPFCEEGEmotionsGratitudeInter-brain connectivity

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Area of Science:

  • Psychology
  • Neuroscience
  • Social Science

Background:

  • Studies explore gift exchange's role in strengthening relationships and promoting prosocial behaviors.
  • Research investigates if gift exchange boosts emotional sharing, gratitude, cooperation, and cognitive/behavioral performance.

Purpose of the Study:

  • To examine the impact of gift exchange on interpersonal cooperation and cognitive/behavioral performance.
  • To explore the neural correlates of gift exchange using hyperscanning electroencephalography (EEG).

Main Methods:

  • 14 pairs of friends completed a joint attention task with randomized gift exchange timing.
  • Simultaneous brain activity was recorded using two electroencephalogram (EEG) systems (hyperscanning).

Main Results:

  • Behavioral performance, specifically accuracy, improved after gift exchange.
  • Increased delta and theta activation in the dorsolateral prefrontal cortex (DLPFC) was observed when gift exchange occurred early.
  • Enhanced neural connectivity in delta and theta bands was detected post-gift exchange.

Conclusions:

  • Gift exchange contributes to strengthening social bonds.
  • The findings highlight the role of gift exchange in increasing cooperation, gratitude, and prosocial behavior.