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Related Concept Videos

Organization of the Brain01:30

Organization of the Brain

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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.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
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Functional Brain Systems: Reticular Formation01:13

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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.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
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Anatomy of the Brain: Major Regions01:20

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The brain is the most complex organ in the human body. It consists of four main parts: the cerebrum, diencephalon, cerebellum, and brainstem.
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Functional Brain Systems: Limbic System01:15

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The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
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Cerebrum: Anatomical Overview II01:11

Cerebrum: Anatomical Overview II

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Each cerebral hemisphere can be divided into three main regions. The outermost region, the cerebral cortex, is a thin layer (2 to 4 millimeters thick) made up of gray matter, consisting of neuron cell bodies, dendrites, glial cells, and blood vessels. The middle region, or white matter, is primarily composed of myelinated nerve fibers organized into three types of large tracts: association fibers, commissures, and projection fibers. Association fibers connect different areas within the same...
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Cerebral Hemispheres01:05

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The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
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Related Experiment Video

Updated: Apr 27, 2026

Modeling the Functional Network for Spatial Navigation in the Human Brain
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Understanding structural-functional relationships in the human brain: a large-scale network perspective.

Zhijiang Wang1, Zhengjia Dai1, Gaolang Gong1

  • 1State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, China Center for Collaboration and Innovation in Brain and Learning Sciences, Beijing Normal University, China.

The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry
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PubMed
Summary

Understanding the brain

Keywords:
connectomefunctional connectivitygraph theorymodulerich clubstructural connectivity

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Area of Science:

  • Neuroscience
  • Computational Neuroscience
  • Network Science

Background:

  • The brain's structural connectivity (SC) forms the anatomical basis for its function.
  • Relating SC to functional connectivity (FC) is crucial for understanding cognition and behavior.
  • Brain networks are modeled using graph theory and noninvasive imaging.

Purpose of the Study:

  • To review the relationship between structural and functional brain connectivity.
  • To highlight the role of large-scale brain networks in structural-functional associations.
  • To propose future research directions in SC-FC coupling.

Main Methods:

  • Utilizing noninvasive neuroimaging techniques like structural MRI, diffusion MRI, and functional MRI.
  • Applying graph theory to model the brain as a complex network.
  • Analyzing interregional connectivity strength and network topological organizations.

Main Results:

  • Demonstrated a tight coupling between SC and FC in terms of connectivity strength and network topology.
  • Observed significant changes in SC-FC coupling during normal development and in neuropsychiatric disorders.
  • Emphasized the importance of large-scale brain networks in understanding structural-functional associations.

Conclusions:

  • The SC-FC relationship is a fundamental aspect of brain organization.
  • SC-FC coupling alterations are relevant to brain development and disorders.
  • Further research into large-scale brain networks will advance our understanding of brain function.