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Related Concept Videos

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.
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Equilibrium and Balance01:15

Equilibrium and Balance

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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...
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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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Gyroscope: Precession01:24

Gyroscope: Precession

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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...
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Type I hair cells of striolar and central zones in vestibular organs are essential for head stability and postural control.

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Related Experiment Video

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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Restoring vestibular function during natural self-motion: Progress and challenges.

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
Summary

Vestibular prostheses aim to restore balance and vision lost due to vestibular system damage. Integrating neuroscience and engineering is key to developing more effective sensory prostheses for improved patient outcomes.

Keywords:
biomimetic stimulationneural plasticityneurophysiologyneurosciencesensory integrationvestibular prostheses

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Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Sensory Prosthetics

Background:

  • The vestibular system is crucial for behavior, balance, and vision.
  • Loss of peripheral vestibular function causes debilitating symptoms like dizziness and postural instability.
  • Existing vestibular prostheses show promise but require further optimization.

Purpose of the Study:

  • To bridge the gap between neuroscience and engineering in vestibular prosthesis development.
  • To review recent progress and challenges in creating sensory prostheses for vestibular function restoration.
  • To advocate for interdisciplinary approaches integrating neural circuit studies with engineering.

Main Methods:

  • Reviewing current research in neuroscience and engineering related to vestibular prostheses.
  • Analyzing neural responses at synaptic, cellular, and circuit levels.
  • Leveraging advancements in large-scale recording technology for population-level neural circuit studies.

Main Results:

  • Current engineering approaches often isolate stimulation protocols from neural understanding.
  • Neuroscience research provides crucial insights into neural responses.
  • Interdisciplinary approaches are needed to overcome current limitations.

Conclusions:

  • Integrating neuroscience and engineering is essential for advancing vestibular prosthesis development.
  • Understanding neural circuits at the population level can guide the development of naturalistic stimulation strategies.
  • Enhanced interdisciplinary collaboration will improve patient outcomes for those with vestibular loss.