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Related Concept Videos

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The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
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Organization of the Brain01:30

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The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
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Related Experiment Video

Updated: Oct 23, 2025

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
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Cohesive communities in dynamic brain functional networks.

Yongchen Fan1, Qiang Fan1, Lv Zhou1,2

  • 1State Key Laboratory for Strength and Vibration of Mechanical Structures and School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an 710049, China.

Physical Review. E
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Summary
This summary is machine-generated.

Brain networks exhibit stable "cohesive communities" that efficiently process information and maintain organization during rest and cognitive tasks. These communities are crucial for dynamic brain function.

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Area of Science:

  • Neuroscience
  • Network Science
  • Cognitive Science

Background:

  • Brain network dynamics involve node switching between modules, correlating with cognition.
  • The mechanisms of this modular reorganization remain unclear.

Purpose of the Study:

  • Investigate nodal module temporal dynamics in brain networks.
  • Identify stable organizational principles underlying brain network reorganization.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) data.
  • Construction of dynamic brain functional networks.
  • Multilayer network analysis to study nodal module behavior.

Main Results:

  • Identified three cohesive communities with high information processing efficiency (higher clustering coefficient, lower characteristic path length).
  • Cohesive communities exhibit more static functional connectivity, strongly constrained by structural connectivity.
  • These communities remain stable during both resting and cognitive task states.

Conclusions:

  • Cohesive communities represent a fundamental organizational principle supporting brain network dynamics.
  • Findings offer insights into the relationship between resting-state and task-state brain organization.