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相关概念视频

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Magnetic Resonance Imaging

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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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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Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...

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相关实验视频

Updated: Jun 18, 2026

Mapping the After-effects of Theta Burst Stimulation on the Human Auditory Cortex with Functional Imaging
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在听觉口头幻觉中,前中枢环连接性:休息状态功能性MRI研究.

Vyara Zaykova1, Ferihan Popova1, Sevdalina Kandilarova2

  • 1Department of Anatomy, Histology and Embryology, Faculty of Medicine, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria.

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概括

精神分裂症患者有听觉口头幻觉,在前中心环中显示出大脑连接的改变. 这些功能连接 (FC) 变化,特别是在右前中心 (PCG) 中,可能表明与精神分裂症相关的神经生物学途径.

关键词:
听觉语言幻觉 听觉语言幻觉功能性磁共振成像技术 功能性磁共振成像技术在中心前的Gyrus.精神分裂症是一种精神分裂症.

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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.
  • 精神病学是一个精神病学.
  • 脑部成像 脑部成像

背景情况:

  • 精神分裂症是一种复杂的精神障碍.
  • 听觉语言幻觉 (AVH) 是一个常见的症状.
  • 了解AVH的神经基础至关重要.

研究的目的:

  • 在精神分裂症患者中研究前中心 (PCG) 的功能连接性 (FC).
  • 为了比较患者和健康对照 (HC) 之间的FC模式.

主要方法:

  • 使用了休息状态功能磁共振成像 (fMRI).
  • 105名受试者参加了这项研究:42名精神分裂症患者患有AVH,63名HC患者.
  • 对双边PCG FC进行了比较分析.

主要成果:

  • 在患者与HC之间增加了右PCG和额叶皮层之间的FC,SMA和ACC.
  • 在患者中,右PCG和舌/部区域之间的FC降低.
  • 对左PCG也观察到改变的FC模式,显示特定大脑区域的连接性增加和减少.

结论:

  • 精神分裂症患者在PCG功能连接中表现出横向性损伤.
  • 这些FC变化可能有助于精神分裂症和幻觉倾向的神经生物学.