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The Vestibular System

The Vestibular System

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.

Equilibrium and Balance

Equilibrium and Balance

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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Related Experiment Video

Updated: Jun 6, 2026

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

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

Published on: August 28, 2019

Signal processing for a vestibular neurostimulator.

Jay T Rubinstein¹, Kaibao Nie, Steven Bierer

¹Virginia Merrill Bloedel Hearing Research Center, Departments of Otolaryngology and Bioengineering, University of Washington, Seattle, WA 98195, USA. rubinj@uw.edu

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|November 25, 2010

Summary

This summary is machine-generated.

A new vestibular neurostimulator, based on cochlear implant technology, shows promise for treating Meniere's disease. Animal studies suggest electrical stimulation can suppress vertigo symptoms, paving the way for human trials.

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Area of Science:

Biomedical Engineering
Neuroscience
Otolaryngology

Background:

Meniere's disease causes debilitating vertigo, and current treatments are insufficient.
A novel vestibular neurostimulator, adapted from cochlear implant technology, has been developed.
Chronic implantation in Rhesus monkeys allowed for studying vestibular electrical stimulation physiology.

Purpose of the Study:

To propose a human feasibility study for implanting a vestibular neurostimulator to treat Meniere's disease.
To investigate the potential of electrical stimulation to suppress Meniere's disease symptoms.
To establish signal processing parameters for the neurostimulator in the absence of a Meniere's disease animal model.

Main Methods:

Developed a vestibular neurostimulator using existing cochlear implant technology.
Performed chronic implantation and physiological studies in Rhesus monkeys.
Analyzed human Meniere's attack data, including quantified eye movements, to inform signal processing.

Main Results:

Animal data suggests that fixed amplitude, constant frequency biphasic pulse trains can suppress Meniere's attack symptoms.
The efficacy of vertigo suppression is readily adjustable via stimulus amplitude or frequency.
Physiological responses to electrical stimulation of the vestibular periphery were characterized in Rhesus monkeys.

Conclusions:

The developed vestibular neurostimulator shows potential for treating Meniere's disease.
Electrical stimulation parameters derived from human attack data appear adequate for symptom suppression.
A human feasibility study is proposed to evaluate the device's efficacy and safety in patients with Meniere's disease.