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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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Anatomical Positions01:11

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In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
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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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相关实验视频

Updated: Sep 16, 2025

Experimental Methods to Study Human Postural Control
08:12

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

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直立姿势:一个独特的条件稳定感官运动协调.

Simon Vandergooten1,2, Laurent Opsomer1,2, Jean-Louis Thonnard1,2

  • 1Mathematical Engineering Department, Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Université catholique de Louvain, Louvain-la-Neuve 1348, Belgium.

eNeuro
|July 8, 2025
PubMed
概括
此摘要是机器生成的。

神经系统利用重力进行感官对齐. 直立姿势可以防止眼睛闭着时,手的方向偏移,而不是倾斜的姿势,有助于感觉运动控制.

关键词:
身体倾斜身体倾斜重力 引力 引力 引力发动机控制器的控制器有针对性的手臂运动.

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Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
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相关实验视频

Last Updated: Sep 16, 2025

Experimental Methods to Study Human Postural Control
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Experimental Methods to Study Human Postural Control

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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
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Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
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科学领域:

  • 神经科学是一个神经科学.
  • 人类运动控制器
  • 生物力学 生物力学

背景情况:

  • 人们假设神经系统依赖于重力来进行感官对齐.
  • 手路方向偏移发生在无重量状态和仰卧姿势中,但不是直立.
  • 影响漂移幅度和条件的因素尚未完全理解.

研究的目的:

  • 调查直立姿势是否是由于重力造成的生物力学奇点,可以防止手路方向偏移.
  • 确定感官漂移的确切条件和影响因素.

主要方法:

  • 人类参与者进行了点对点的手臂运动,眼睛打开和闭上.
  • 运动以各种身体方向执行:直立,并向后倾斜 (45°,90°,135°).
  • 在每个条件下测量了手径方向漂移.

主要成果:

  • 在闭眼的情况下,只在身体倾斜时才观察到手径方向的漂移.
  • 在直立,闭眼状态下没有检测到漂移.
  • 漂移的大小和方向在所有测试的倾斜方向上都是一致的.

结论:

  • 直立姿势独特地促进了感官运动转变.
  • 在视觉输入缺席时,直立姿势可以防止手径方向的漂移.
  • 重力在传感运动控制中的作用至关重要,尤其是在没有视觉线索的情况下保持定向.