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Related Concept Videos

The Vestibular System01:29

The Vestibular System

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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.
44.2K

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Related Experiment Video

Updated: Feb 20, 2026

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
07:24

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

Published on: August 22, 2025

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A low-cost video-oculography system for vestibular function testing.

Jihwan Park, Youngsun Kong, Yunyoung Nam

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |October 25, 2017
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a low-cost video-oculography system for home vestibular system evaluation. The system accurately measures clinical features of abnormal nystagmus, offering a more accessible diagnostic tool.

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    Area of Science:

    • Ophthalmology
    • Neurology
    • Biomedical Engineering

    Background:

    • The vestibular-ocular reflex maintains visual stability during head movements.
    • Vestibular system disorders can cause vision impairment, abnormal nystagmus, and dizziness.
    • Current diagnostic methods like videonystagmography are costly and not suitable for home use.

    Purpose of the Study:

    • To develop a low-cost video-oculography system for at-home vestibular function assessment.
    • To enable the measurement of clinical features related to abnormal nystagmus.
    • To provide an accessible alternative for diagnosing vestibular disorders.

    Main Methods:

    • A low-cost video-oculography system was developed using an infrared camera and Raspberry Pi.
    • Pupil tracking was achieved through morphology operations and contour detection.
    • Head rotation velocity was measured using a gyroscope sensor, and eye movements were derived from video data.

    Main Results:

    • The system successfully measured clinical features including gain, asymmetry, and phase.
    • Comparison with a standard system (System 2000) showed average IQR errors of 0.81 for gain, 2.74 for phase, and 17.35 for asymmetry.
    • The developed system demonstrated its capability to accurately assess vestibular function.

    Conclusions:

    • The developed low-cost video-oculography system is effective for evaluating vestibular function at home.
    • This technology offers a more accessible and affordable method for diagnosing vestibular disorders.
    • The system's ability to measure key clinical features supports its clinical utility.