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Related Experiment Video

Updated: Jul 5, 2025

How to Calculate and Validate Inter-brain Synchronization in a fNIRS Hyperscanning Study

How to Calculate and Validate Inter-brain Synchronization in a fNIRS Hyperscanning Study

Published on: September 8, 2021

Mobile fNIRS for exploring inter-brain synchrony across generations and time.

Ryssa Moffat¹, Courtney E Casale², Emily S Cross¹

¹Social Brain Sciences, ETH Zurich, Zurich, Switzerland.

Frontiers in Neuroergonomics

|January 18, 2024

Summary

Longitudinal hyperscanning using mobile functional near-infrared spectroscopy (fNIRS) can track brain synchrony changes over time. This approach offers valuable insights into social and cognitive development across generations.

Keywords:

fNIRS hyperscanning inter-brain synchrony intergenerational interpersonal neural synchrony longitudinal

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Last Updated: Jul 5, 2025

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Published on: July 21, 2021

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Published on: October 6, 2023

Area of Science:

Social Neuroscience
Cognitive Neuroscience
Developmental Psychology

Background:

Longitudinal hyperscanning studies are crucial for understanding dynamic inter-brain synchrony.
Mobile functional near-infrared spectroscopy (fNIRS) offers ecological validity for such studies.
Previous research primarily focused on child-parent dyads.

Purpose of the Study:

To advocate for longitudinal and intergenerational hyperscanning.
To explore its relevance for understanding intergenerational social dynamics.
To assess its potential for benchmarking interventions in intergenerational contexts.

Main Methods:

Utilizing mobile functional near-infrared spectroscopy (fNIRS) for longitudinal data collection.
Focusing on intergenerational dyads to capture real-world social interactions.
Analyzing changes in inter-brain synchrony across different age groups over time.

Main Results:

Longitudinal hyperscanning with mobile fNIRS enhances understanding of social and cognitive development.
This approach is particularly beneficial for studying intergenerational relationships and dynamics.
Identified challenges and proposed solutions for cross-generational mobile hyperscanning research.

Conclusions:

Longitudinal intergenerational hyperscanning is a promising approach for social and cognitive neuroscience.
It provides a unique window into the neural underpinnings of social interactions across the lifespan.
Further research in this area can inform psychological and social interventions.