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Related Concept Videos

Cerebrum: Anatomical Overview I01:26

Cerebrum: Anatomical Overview I

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The main and largest component of the human brain is the cerebrum. The cerebrum consists of two main parts: the cerebral cortex, an outer layer with wrinkles or folds known as gyri and shallow grooves called sulci, and a deeper region beneath it. The cerebrum divides into two distinct hemispheres and contains five different lobes: the frontal, parietal, temporal, occipital, and insula. The central sulcus separates the frontal and parietal lobes and two functionally important gyri — the...
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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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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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Cerebrum: Anatomical Overview II01:11

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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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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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The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
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Related Experiment Video

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Microdissection of Mouse Brain into Functionally and Anatomically Different Regions
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Fundamental functional differences between gyri and sulci: implications for brain function, cognition, and behavior.

Xi Jiang1, Tuo Zhang2, Shu Zhang3

  • 1School of Life Science and Technology, MOE Key Laboratory for Neuroinformation, University of Electronic Science and Technology of China, Chengdu 611731, China.

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Summary

Cortical folding, forming gyri and sulci, is vital for brain function. Understanding this anatomy-function relationship is key to deciphering brain health and disorders.

Keywords:
brain anatomo-functioncortical foldinggyro-sulcal pattern

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Area of Science:

  • Neuroscience
  • Computational Biology
  • Genetics

Background:

  • Cortical folding is a key feature of mammalian brains, with alterations linked to cognitive and behavioral deficits.
  • Gyri and sulci are fundamental anatomical units that form complex folding patterns, offering insights into brain structure and function.
  • Current understanding of the functional anatomy of gyro-sulcal patterns remains limited despite extensive research.

Purpose of the Study:

  • To review the current state of research on the functional anatomy of the cerebral cortex's gyro-sulcal system.
  • To present methodologies and findings on functional differentiation between gyri and sulci.
  • To propose a framework for interpreting the dynamic functional interplay between gyri and sulci.

Main Methods:

  • Review of existing literature from genetics, cell biology, anatomy, neuroimaging, neurology, machine learning, and artificial intelligence.
  • Analysis of research on functional differentiation between gyri and sulci.
  • Synthesis of information on genetic, cellular, and structural correlates of cortical folding.

Main Results:

  • The review synthesizes current knowledge on the anatomo-functional relationships within the cortical gyro-sulcal system.
  • It highlights the limited but growing understanding of how specific gyro-sulcal patterns relate to brain function.
  • Supporting evidence from genetic, cellular, and structural research is integrated.

Conclusions:

  • A comprehensive understanding of gyro-sulcal patterns is crucial for deciphering brain function, cognition, and behavior.
  • Further research, particularly integrating computational approaches, is needed to fully elucidate the functional anatomy of cortical folding.
  • The proposed framework aims to advance the interpretation of functional interplay within the gyro-sulcal system, with implications for understanding mental disorders.