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Related Experiment Video

Updated: Jun 6, 2025

Author Spotlight: Unlocking New Insights in fNIRS Studies - A Novel Framework for Inter-Brain Synchrony Analysis
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Estimating global phase synchronization by quantifying multivariate mutual information and detecting network

Zhaohui Li1, Yanyu Xing2, Xinyan Wang2

  • 1School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China; Hebei Key Laboratory of information transmission and signal processing, Yanshan University, Qinhuangdao 066004, China.

Neural Networks : the Official Journal of the International Neural Network Society
|December 3, 2024
PubMed
Summary

We introduce Total Correlation-based Synchronization (TCS) to measure global phase synchronization (GPS) in neural networks, considering network structure. TCS effectively distinguishes synchronization intensity and shows promise for analyzing brain disorders like epilepsy.

Keywords:
Complete functional interactionEpilepsyGlobal phase synchronizationTotal correlation

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Area of Science:

  • Neuroscience
  • Complex Systems
  • Computational Biology

Background:

  • Phase synchronization (PS) is vital for neural information processing.
  • Global phase synchronization (GPS) quantifies PS in multivariate neural signals.
  • Existing GPS methods overlook network structural differences.

Purpose of the Study:

  • Introduce Total Correlation-based Synchronization (TCS) to quantify GPS.
  • Evaluate TCS's performance against existing methods.
  • Assess TCS's utility in analyzing neurological data.

Main Methods:

  • Developed TCS by examining network organization.
  • Simulated Rössler model networks to compare TCS with other methods.
  • Applied TCS to stereo-electroencephalography (SEEG) data from epilepsy patients.

Main Results:

  • TCS effectively distinguishes GPS intensity between networks with similar structures.
  • TCS provides insights into signal separation and integration during synchronization.
  • Increased GPS and brain region integration correlate with seizure termination in epilepsy patients.

Conclusions:

  • TCS offers a novel method for measuring GPS in multivariate signals.
  • TCS can enhance understanding of brain functions and neurological disorders.
  • This method may illuminate mechanisms in learning, memory, epilepsy, and Alzheimer's disease.