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相关概念视频

Indirect Motor Pathways01:22

Indirect Motor Pathways

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The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
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Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

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Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the...
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Brainstem01:19

Brainstem

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The brainstem, located inferior to the brain and superior to the spinal cord, serves as a bridge between the cerebrum and the spinal cord. It plays a vital role in relaying information and controlling critical life functions. It comprises three primary regions: the midbrain, pons, and medulla oblongata.
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
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Brainstem: Control Centers of Medulla01:21

Brainstem: Control Centers of Medulla

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The medulla oblongata is a crucial part of the brainstem responsible for controlling various autonomic and involuntary functions. It contains several nuclei, including the olivary, cuneate, gracile, and solitary nuclei.
Olivary Nucleus
The olivary nucleus, or inferior olivary nucleus, is located within the ventrolateral part of the medulla oblongata. It is primarily involved in motor coordination and motor learning. The olivary nucleus receives input from the spinal cord, cerebellum, and motor...
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相关实验视频

Updated: Jul 11, 2025

Using Saccadometry with Deep Brain Stimulation to Study Normal and Pathological Brain Function
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Using Saccadometry with Deep Brain Stimulation to Study Normal and Pathological Brain Function

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大脑干神经回路触发垂直冲动和固定.

M Takahashi1, Y Sugiuchi2, Y Shinoda2

  • 1Department of Systems Neurophysiology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan takahashi.phy1@tmd.ac.jp.

The Journal of neuroscience : the official journal of the Society for Neuroscience
|November 15, 2023
PubMed
概括

研究人员发现了一种用于垂直眼动的新神经回路. 这种电路涉及垂直抑制突发神经元 (IBN),与先前已知的水平电路类似,可以在各个方向上跳动.

关键词:
抑制性爆发神经元神经元的抑制性爆发神经元这是Cajal的间歇性核.总体休息神经元的神经元.萨卡德的触发器触发器上级结体 (上级结体)

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Recording Horizontal Saccade Performances Accurately in Neurological Patients Using Electro-oculogram
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Recording Horizontal Saccade Performances Accurately in Neurological Patients Using Electro-oculogram

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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

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相关实验视频

Last Updated: Jul 11, 2025

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05:44

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Recording Horizontal Saccade Performances Accurately in Neurological Patients Using Electro-oculogram
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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
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科学领域:

  • 神经科学是一个神经科学.
  • 眼神运动控制器的控制器
  • 神经生理学 神经生理学

背景情况:

  • 斜视眼动对于转移视线和保持视觉稳定至关重要.
  • 在固定过程中,全休止神经元 (OPNs) 能有力地抑制冲击突发神经元 (BNs).
  • 之前的研究已经确定了从上结核 (SC) 中的水平抑制性BN (IBN) 抑制水平分离的OPN.

研究的目的:

  • 为了阐明负责在垂直冲刺过程中抑制OPN的神经回路.
  • 为了确定是否存在与水平路径类似的异交垂直IBN电路.

主要方法:

  • 在麻醉猫的细胞内记录.
  • 解剖学上的染色.解剖学上的染色.
  • 中线截面用于区分水平和垂直路径.
  • 刺激上方结体 (SC) 的部区域.

主要成果:

  • 确定了一种抑制垂直冲刺过程中OPNs的失联电路.
  • 在Cajal的间歇核中的垂直IBN从面向SC接收输入.
  • 垂直IBN,而不是水平IBN,负责在垂直冲刺过程中抑制OPN.

结论:

  • 一个保存的SC-IBN-OPN电路机制在水平和垂直的眼运动通路中触发了萨卡德.
  • 这种双电路系统允许在任何方向上对眼睛进行斜动.
  • 这一发现有助于我们更好地理解注视控制的神经基础.