Inter-brain coupling tracks emotional co-regulation

Area of Science:

• Neuroscience
• Social Psychology
• Psychotherapy Research

Background:

• Emotional experiences are frequently shared with others, crucial for relationships and therapy.
• The neural mechanisms of emotional sharing and its impact on brain health are not well understood.
• Social connections are vital for maintaining brain health.

Purpose of the Study:

• To investigate the neural underpinnings of emotional sharing.
• To determine if shared brain responses (inter-brain coupling) in dyads relate to successful emotional processing and regulation.
• To explore the link between brain synchrony during emotional sharing and mood changes.

Main Methods:

• Participants watched emotion-eliciting videos (negative or neutral) and then shared their feelings with a friend.
• Simultaneous functional near-infrared spectroscopy (fNIRS) recorded brain activity in both individuals within dyads.
• Inter-brain coupling was analyzed before, during, and after the emotional sharing sessions.

Main Results:

• Shifts in inter-brain coupling correlated with changes in participants' mood.
• Increased inter-brain coupling after sharing negative emotions was linked to decreased anger and dejection in listeners.
• Increased inter-brain coupling was also associated with enhanced vigor in the sharers.

Conclusions:

• Inter-brain coupling appears to facilitate the co-regulation of negative emotions between individuals.
• Synchronized brain activity during emotional sharing may contribute to maintaining emotional homeostasis.
• Findings suggest potential applications for enhancing psychotherapeutic interventions focused on emotional regulation and social connection.