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相关概念视频

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The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
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Central to the gray...
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Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
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相关实验视频

Updated: May 31, 2025

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging
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基于白质功能梯度的白质灰质相关性分析.

Zhengjie Li1, Jiajun Liu1, Jianhui Zheng1

  • 1College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China.

Brain sciences
|January 24, 2025
PubMed
概括
此摘要是机器生成的。

这项研究揭示了白质的功能梯度在健康成年人中表现出半球对称性,在男性和女性中呈现出不同的模式. 白质的功能梯度为大脑结构和功能提供了新的见解.

关键词:
这是CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC在WM中,WM就是WM.不对称的不对称性功能梯度梯度是一个函数式梯度梯度.rs-fMRI 是一个

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相关实验视频

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科学领域:

  • 神经科学是一个神经科学.
  • 神经成像是一种神经成像.
  • 大脑的连接性 大脑的连接性

背景情况:

  • 功能性磁共振成像 (fMRI) 研究传统上侧重于灰质 (GM) 功能信号.
  • 白质 (WM) 信号,通常被视为噪声,也包含功能信息.
  • 功能梯度是理解大脑组织的关键,但WM一直没有得到充分的研究.

研究的目的:

  • 使用功能梯度研究全脑白质 (WM) 内的功能层次结构.
  • 探索WM功能组织中的半球对称性和性别差异.
  • 分析WM结构和功能之间的关系,特别是在体 (CC) 中.

主要方法:

  • 在健康个体中利用了全脑WM的主要功能梯度.
  • 在分析中考虑了性别差异.
  • 在体 (CC) 的空间结构中检查了功能梯度值.

主要成果:

  • 在WM中,在左脑和右脑半球中展示了对称的功能层次结构.
  • 在男性和女性中观察到相似程度的区域不对称性,具有独特的变化.
  • 没有发现CC结构和功能之间的简单一对一映射,这表明了复杂的内部连接.

结论:

  • 微波的功能梯度为研究微波的结构和功能特征提供了一种新的方法.
  • 这些发现提供了关于GM和WM之间神经活动调节的见解.
  • 强调在脑功能组织研究中考虑WM的重要性.