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Brain-to-brain coupling forecasts future joint action outcomes.

Roksana Markiewicz1,2,3, Katrien Segaert1,2, Ali Mazaheri1,2

  • 1School of Psychology, University of Birmingham, Birmingham, UK.

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|September 18, 2024
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Brain-to-brain coupling in frontal mid-line theta activity predicts cooperation success. Anti-correlation indicates flexible strategies for optimal joint action, while correlation suggests failed collaboration in time estimation tasks.

Keywords:
Behavioral neuroscienceCognitive neuroscience

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Social Psychology

Background:

  • Cooperation relies on shared understanding and coordinated adjustments.
  • Brain-to-brain coupling offers insights into interpersonal synchrony during joint tasks.

Purpose of the Study:

  • To investigate if brain-to-brain coupling predicts cooperative performance in a time-estimation task.
  • To explore the neural correlates of successful versus failed joint action.

Main Methods:

  • Utilized electroencephalogram (EEG)-hyperscanning with pairs performing a time-estimation task.
  • Focused on analyzing post-feedback brain activity, specifically frontal mid-line theta power.

Main Results:

  • Negative feedback increased frontal mid-line theta activity.
  • Interpersonal correlation in post-feedback theta power predicted failed joint action.
  • Interpersonal anti-correlation in post-feedback theta power predicted successful joint action.

Conclusions:

  • Temporally coupled feedback-related brain activity indicates shared goal representation adjustments.
  • Anti-correlation in theta activity reflects cognitive strategies for optimal cooperation.
  • Successful cooperation requires flexible strategic agility, not just synchronized responses.