Tetradic Dynamics of Dyadic Sensorimotor Coordination: A Multiscale EEG Hyperscanning Study

Tetradic sensorimotor coordination in dyads involves role-specific brain dynamics, with predictive and adaptive processes operating across multiple scales and regions.

• Why it matters: Understanding how leader and follower roles influence brain mechanisms is crucial for addressing social coordination deficits in conditions like schizophrenia and autism spectrum disorder.
• What they did: Researchers used dual-brain EEG hyperscanning with 16 healthy adult pairs in a 2x2 design, examining neural activity during mirroring and matching tasks to dissociate automatic and controlled coordination.
• The result: Findings reveal role-dependent neural signatures, including predictive information and adaptive regulation, providing potential biomarkers for clinical populations with disrupted interpersonal coordination.