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相关概念视频

The Vestibular System01:29

The Vestibular System

39.3K
The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.
39.3K
Equilibrium and Balance01:15

Equilibrium and Balance

4.4K
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
4.4K
Indirect Motor Pathways01:22

Indirect Motor Pathways

1.4K
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...
1.4K
Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

889
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...
889
Gyroscope: Precession01:24

Gyroscope: Precession

4.0K
Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
4.0K

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相关实验视频

Updated: Jun 4, 2025

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
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Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction

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在自然自动运动中恢复前庭功能:进展和挑战

Kantapon Pum Wiboonsaksakul1,2, Olivia M E Leavitt Brown1, Kathleen E Cullen1,2,3,4

  • 1Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, United States.

eLife
|December 17, 2024
PubMed
概括

前庭节假肢的目的是恢复由于前庭系统损伤而失去的平衡和视力. 结合神经科学和工程是开发更有效的感官假肢以改善患者的结果的关键.

关键词:
生物模拟刺激生物模拟刺激神经可塑性 神经可塑性神经生理学神经生理学神经科学 神经科学感官整合 感官整合在前体前置假肢.

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Measuring the Influence of Magnetic Vestibular Stimulation on Nystagmus, Self-Motion Perception, and Cognitive Performance in a 7T MRT
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Measuring the Influence of Magnetic Vestibular Stimulation on Nystagmus, Self-Motion Perception, and Cognitive Performance in a 7T MRT

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Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
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Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

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相关实验视频

Last Updated: Jun 4, 2025

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
05:02

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction

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Measuring the Influence of Magnetic Vestibular Stimulation on Nystagmus, Self-Motion Perception, and Cognitive Performance in a 7T MRT
08:57

Measuring the Influence of Magnetic Vestibular Stimulation on Nystagmus, Self-Motion Perception, and Cognitive Performance in a 7T MRT

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Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
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Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Published on: May 23, 2013

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科学领域:

  • 神经科学是一个神经科学.
  • 生物医学工程 生物医学工程
  • 感官假肢是一种感官假肢.

背景情况:

  • 前体系统对于行为,平衡和视力至关重要.
  • 周围前庭功能丧失会导致令人虚弱的症状,如头和姿势不稳定.
  • 现有的前置假体显示出希望,但需要进一步优化.

研究的目的:

  • 为了弥合神经科学和工程之间的差距,在前体假肢开发中.
  • 审查最近在创建感官假肢以恢复前体功能方面取得的进展和挑战.
  • 倡导跨学科的方法,将神经电路研究与工程结合起来.

主要方法:

  • 审查与前体假肢相关的神经科学和工程方面的当前研究.
  • 在突触,细胞和电路层面分析神经反应.
  • 利用大规模记录技术的进步,进行人口级神经电路研究.

主要成果:

  • 当前的工程方法往往将刺激协议与神经理解隔离开来.
  • 神经科学研究为神经反应提供了至关重要的见解.
  • 需要跨学科的方法来克服目前的局限性.

结论:

  • 整合神经科学和工程对于推动前体假体开发至关重要.
  • 在人口层面上了解神经回路可以指导自然主义刺激策略的开发.
  • 加强跨学科合作将改善前庭损失患者的治疗结果.