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相关概念视频

Accessory Structures of the Eye01:17

Accessory Structures of the Eye

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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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Muscles of the Eye01:20

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The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and...
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Lateralization01:28

Lateralization

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Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
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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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相关实验视频

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在白发中异常的半球间功能合作.

Jian-Ping Liu1,2,3, Yu-Fang Gu3, Yang Shi4

  • 1Department of Neurology, Affiliated Hospital 6 of Nantong University, Yancheng, China.

Frontiers in neurology
|November 17, 2025
PubMed
概括
此摘要是机器生成的。

血发作患者在运动大脑区域中表现出增加的半球间功能连接,这可能表明一种补偿机制. 这项研究为白发提供了对白发的新见解.

关键词:
这是一种白性动 (blepharospasm).跨半球的功能合作.在中心前的Gyrus.普塔门 (Putamen) 是一个名为普塔门的城市.静止状态的功能磁共振成像技术

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科学领域:

  • 神经科学是一个神经科学.
  • 神经学 神经学
  • 医疗成像医学成像

背景情况:

  • 血包括非自愿的orbicularis oculi肌肉收缩,影响生活质量.
  • 血栓的潜在病理生理学尚未完全理解.
  • 半球间的大脑合作对人类大脑功能至关重要.

研究的目的:

  • 为了研究白发作患者的半球间功能合作.
  • 通过静止状态功能磁共振成像 (rs-fMRI) 来识别白发作中的神经干扰.
  • 为了检查在白发中功能性同位素声细胞 (CFH) 之间的连接性.

主要方法:

  • 招募了30名白发作患者和30名匹配的健康对照.
  • 利用rs-fMRI生成CFH地图,用于voxel级别的半球间连接.
  • 进行了与临床变量进行的组比较和相关性分析.

主要成果:

  • 与对照人群相比,白发作患者在左门和左前中心环中显著增加了CFH.
  • 异常的CFH值与疾病持续时间或扬科维奇评分表得分等临床变量没有相关性.
  • 研究结果突出显示,与运动相关的大脑区域的功能连接发生了改变.

结论:

  • 在白血中,在运动区域中发现了增加的半球间功能连接 (FC).
  • 门和前中心回形中观察到的超连接性可能代表一个补偿机制.
  • 建议调节半球间通信作为白的潜在治疗目标.