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相关概念视频

The Vestibular System01:29

The Vestibular System

43.2K
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.
43.2K
Equilibrium and Balance01:15

Equilibrium and Balance

6.1K
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...
6.1K

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相关实验视频

Updated: Jan 7, 2026

Stochastic Noise Application for the Assessment of Medial Vestibular Nucleus Neuron Sensitivity In Vitro
06:22

Stochastic Noise Application for the Assessment of Medial Vestibular Nucleus Neuron Sensitivity In Vitro

Published on: August 28, 2019

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优化前庭电刺激 (EVS) 以评估前庭功能.

Raphael Hamel1, Peter Gaskell1, Sophie Prosser1

  • 1School of Sport, Exercise, and Rehabilitation Sciences, University of Birmingham, UK.

Clinical neurophysiology practice
|December 31, 2025
PubMed
概括
此摘要是机器生成的。

电气前庭刺激 (EVS) 通过使用黑暗和较低的频率来优化前庭不对称性评估,以获得更大的反应. 更高的频率可以加快测试速度,而特定的电极安装可以确保单个前庭器官的激活.

关键词:
电气前庭刺激 电气前庭刺激电极安装方式 电极安装方式耳间静脉间不对称性刺激的频率 刺激的频率扭转前庭眼镜反射 (VOR) 是指扭转前庭眼睛反射.

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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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Estimating Vestibular Perceptual Thresholds Using a Six-Degree-Of-Freedom Motion Platform
06:31

Estimating Vestibular Perceptual Thresholds Using a Six-Degree-Of-Freedom Motion Platform

Published on: August 4, 2022

3.6K

相关实验视频

Last Updated: Jan 7, 2026

Stochastic Noise Application for the Assessment of Medial Vestibular Nucleus Neuron Sensitivity In Vitro
06:22

Stochastic Noise Application for the Assessment of Medial Vestibular Nucleus Neuron Sensitivity In Vitro

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5.5K
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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Estimating Vestibular Perceptual Thresholds Using a Six-Degree-Of-Freedom Motion Platform
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Estimating Vestibular Perceptual Thresholds Using a Six-Degree-Of-Freedom Motion Platform

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科学领域:

  • 神经科学是一个神经科学.
  • 眼科医生 眼科 眼科
  • 听力学 听力学是指听力学.

背景情况:

  • 电气前庭刺激 (EVS) 显示出对评估耳道间前庭不对称的有希望,可与传统热量灌相提并论.
  • 优化EVS参数对于其有效的临床应用至关重要.

研究的目的:

  • 调查EVS刺激参数如何影响眼睛扭力反应幅度和不对称性评估.
  • 提高EVS在临床环境中的诊断实用性.

主要方法:

  • 健康的年轻成年人 (n=72) 接受了单声鼻状EVS.
  • 在操纵环境光,电极安装和刺激频率时记录了眼睛扭曲.

主要成果:

  • 与环境光 (250 lx) 相比,黑暗增加了20%的扭转反应.
  • 与双耳刺激相比,形C7组装产生了50%的反应.
  • 0.5赫兹的刺激产生了比2赫兹大250%的响应,但需要更长的评估时间 (12s vs 4s).
  • 较低的频率 (0.5 Hz) 被认为比较高的频率 (2 Hz) 不那么不舒服.

结论:

  • 黑暗和较低的刺激频率 (0.5 Hz) 最大化扭转响应幅度.
  • 更高的刺激频率 (2 Hz) 加快了不对称性评估.
  • 为激活单个前庭末端器官,建议进行C7形或形-形-形关节组装.
  • 建议用于病理评估的规范性不对称范围为0 ± 25%.