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Updated: Jun 11, 2026

Inter-Brain Synchrony in Open-Ended Collaborative Learning: An fNIRS-Hyperscanning Study
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Can People's Brains Synchronize during Remote AR Collaboration?

Jaehwan You, Myeongul Jung, Kwanguk Kim

    IEEE Transactions on Visualization and Computer Graphics
    |March 3, 2025
    PubMed
    Summary
    This summary is machine-generated.

    Brain synchrony measurement reveals differences in remote augmented reality (AR) social interactions. Higher brain synchrony correlated with better task performance during AR collaboration, suggesting its utility for assessing remote social engagement.

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    Area of Science:

    • Neuroscience
    • Human-Computer Interaction
    • Cognitive Science

    Background:

    • Brain synchrony is a known indicator of social interaction quality in real-world settings.
    • Research on measuring brain synchrony during remote social interactions, particularly in augmented reality (AR), is limited.

    Purpose of the Study:

    • To investigate and measure brain synchrony during remote augmented reality (AR) interactions.
    • To compare brain synchrony in AR interactions versus face-to-face (FTF) interactions.
    • To explore the relationship between brain synchrony and task performance in collaborative AR settings.

    Main Methods:

    • Utilized functional near-infrared spectroscopy (fNIRS) to measure brain synchrony.
    • Employed a tangram puzzle task in both collaboration and individual conditions.
    • Recruited participants for two studies: Study 1 (AR interactions) and Study 2 (FTF interactions).

    Main Results:

    • A significant difference in brain synchrony was found between individual and collaboration conditions in Study 1 (AR).
    • Positive correlation observed between brain synchrony and task performance in the AR collaboration condition.
    • The distinction between collaboration and individual conditions persisted in Study 2 (FTF), with some differences noted between AR and FTF brain synchrony patterns.

    Conclusions:

    • Measuring brain synchrony is valuable for understanding and potentially enhancing social interactions in remote AR collaborations.
    • Findings suggest that brain synchrony metrics can differentiate between collaborative and individual work in AR.
    • The study highlights the potential of fNIRS for assessing social dynamics in emerging remote communication technologies.