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相关概念视频

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

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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: Jan 15, 2026

Functional MRI in Conjunction with a Novel MRI-compatible Hand-induced Robotic Device to Evaluate Rehabilitation of Individuals Recovering from Hand Grip Deficits
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Functional MRI in Conjunction with a Novel MRI-compatible Hand-induced Robotic Device to Evaluate Rehabilitation of Individuals Recovering from Hand Grip Deficits

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绘制手部功能的地图,同时进行脑脊髓功能性MRI.

Valeria Oliva1,2, Sandrine Bédard1,3, Merve Kaptan1

  • 1Division of Pain Medicine, Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Palo Alto, CA, United States.

Imaging neuroscience (Cambridge, Mass.)
|October 9, 2025
PubMed
概括
此摘要是机器生成的。

这项研究绘制了手工任务期间的大脑和脊髓活动的地图. 它揭示了分级的神经反应和抑制模式,促进了我们对运动控制和潜在康复策略的理解.

关键词:
大脑大脑大脑的大脑大脑功能性核磁共振成像 (MRI) 功能性核磁共振成像手的力量,手的力量.运动活动 运动活动肌肉骨和神经生理现象.脊髓是指脊髓的部分.

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High-resolution Functional Magnetic Resonance Imaging Methods for Human Midbrain

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相关实验视频

Last Updated: Jan 15, 2026

Functional MRI in Conjunction with a Novel MRI-compatible Hand-induced Robotic Device to Evaluate Rehabilitation of Individuals Recovering from Hand Grip Deficits
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科学领域:

  • 神经科学是一个神经科学.
  • 发动机控制器的控制器
  • 神经成像是一种神经成像.

背景情况:

  • 手动控制涉及复杂的脑脊髓相互作用.
  • 这些通路的干扰会导致运动缺陷.
  • 在手部功能中脊髓机制的理解比大脑机制要少.

研究的目的:

  • 在手力和灵巧任务中绘制大脑和脊髓的神经活动的地图.
  • 通过同时使用fMRI来研究运动控制中的脑脊髓相互作用.
  • 描述手部功能和潜在障碍背后的神经机制.

主要方法:

  • 在28名健康志愿者身上同时进行脑脊髓功能性MRI (fMRI).
  • 参与者完成了以不同强度的力量匹配和手指敲击任务.
  • 对大脑和脊髓图像进行了分析,以发现激活和关闭模式.

主要成果:

  • 这两项任务都显示了运动和感觉大脑/脊髓区域的激活.
  • 在左侧主要运动 (M1) 和感觉 (S1) 皮层以及右脊髓中观察到分级反应.
  • 在右侧的M1/S1和左侧的脊髓灰质中观察到依赖任务级别的失活.

结论:

  • 这项研究提供了一个详细的脑脊髓相互作用的地图,在手动任务.
  • 研究结果表明,在单方面任务中,半球间抑制和脊髓抑制机制存在.
  • 这项研究提高了对运动控制的理解,并可能为运动障碍的康复提供信息.