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相关概念视频

Anatomy of the Brain: Major Regions01:20

Anatomy of the Brain: Major Regions

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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.
The cerebrum is the largest section of the brain and divides into left and right hemispheres, separated by a deep fissure. The cerebral outer layer of grey matter — the cerebral cortex — comprises elevations called gyri and shallow groves called sulci. The inner portion of white matter includes long nerve fibers known as axons, which connect...
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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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Genome Annotation and Assembly03:36

Genome Annotation and Assembly

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The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Anatomy of the Brain: Ventricles01:18

Anatomy of the Brain: Ventricles

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There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen.
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Brain Imaging01:14

Brain Imaging

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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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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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相关实验视频

Updated: Jul 13, 2025

Modeling the Functional Network for Spatial Navigation in the Human Brain
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走向一个生物学注释的大脑连接体.

Vincent Bazinet1, Justine Y Hansen1, Bratislav Misic2

  • 1Montréal Neurological Institute, McGill University, Montréal, Quebec, Canada.

Nature reviews. Neuroscience
|October 17, 2023
PubMed
概括
此摘要是机器生成的。

有注释的连接体将大脑布线数据与本地生物学集成在一起. 这种方法增强了对大脑网络形成,动态和疾病的理解,为研究神经回路提供了新的途径.

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相关实验视频

Last Updated: Jul 13, 2025

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科学领域:

  • 神经科学是一个神经科学.
  • 计算生物学 计算生物学
  • 系统生物学 系统生物学

背景情况:

  • 现代连接学通常将大脑连接简化为节点和边缘的抽象网络.
  • 这种抽象忽略了神经元群体的关键本地生物细节.
  • 生物注释,如基因表达和受体配置文件是可测量的,可以丰富网络模型.

研究的目的:

  • 审查大脑连接体作为注释网络的表示和分析.
  • 探索生物注释如何与网络模型集成.
  • 突出注释连接体的好处,以了解大脑结构和功能.

主要方法:

  • 审查有关连接经济学和网络分析的现有文献.
  • 讨论将生物注释叠加到大脑网络模型上的方法.
  • 检查注释网络如何促进新的分析方法.

主要成果:

  • 有注释的连接体允许通过将连接模式与本地生物学联系起来,重新构想网络架构.
  • 这种综合方法导致了大脑网络形成,神经动力学和疾病传播的更真实的模型.
  • 标注可以推断出新的区域间关系,并允许构建互补的网络类型.

结论:

  • 生物注释的连接体提供了一个强大的框架,用于研究神经线连接与当地的生物特征.
  • 这种综合的观点增强了对大脑网络,动态和疾病机制的研究.
  • 有注释的连接体提供了一个令人信服的方法来加深我们对大脑复杂组织的理解.