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Related Experiment Video

Updated: Sep 1, 2025

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Parcellating the human brain using resting-state dynamic functional connectivity.

Limin Peng1, Zhiguo Luo1, Ling-Li Zeng1

  • 1College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China.

Cerebral Cortex (New York, N.Y. : 1991)
|August 14, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces the Dynamic-FC-based Brain Functional Atlas (D-BFA), a novel brain map revealing finer functional boundaries by analyzing dynamic functional connectivity (dFC). The D-BFA offers a more detailed view of brain organization than static methods.

Keywords:
brain parcellationdynamic functional connectivityfMRIunsupervised clustering

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Area of Science:

  • Neuroscience
  • Brain Imaging
  • Computational Neuroscience

Background:

  • Brain cartography relies on functional connectivity (FC) to map brain regions.
  • Static FC analysis overlooks the dynamic nature of brain interactions, potentially missing subtle functional boundaries.
  • Understanding dynamic functional interactions is crucial for a comprehensive brain map.

Purpose of the Study:

  • To develop a novel brain parcellation framework using dynamic functional connectivity (dFC).
  • To create a new whole-brain functional atlas, the DFC-based Brain Functional Atlas (D-BFA).
  • To validate the neurophysiological plausibility and advantages of the D-BFA.

Main Methods:

  • Developed a parcellation framework based on dynamic functional connectivity (dFC).
  • Constructed the DFC-based Brain Functional Atlas (D-BFA) using resting-state fMRI data.
  • Verified the atlas's validity using stereo-EEG data and compared it with cytoarchitectonic maps and task activation data.

Main Results:

  • The D-BFA, the first dFC-based whole-brain atlas, identifies finer functional boundaries than static FC.
  • The atlas shows good correspondence with known brain structures and activation patterns.
  • D-BFA reveals the spatial distribution of dynamic variability and produces more homogenous parcels.

Conclusions:

  • Dynamic FC provides a superior and practical approach for brain parcellation.
  • The D-BFA offers a new dynamic perspective on brain topographic organization.
  • The D-BFA atlas will be publicly available to facilitate further research.