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Related Experiment Video

Updated: Jun 19, 2026

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Published on: April 18, 2019

A head-tilt caloric test for evaluating the vertical semicircular canal function.

Sachiko Aoki¹, Yasuko Arai, Keiko Yoda

¹Department of Otolaryngology, Tokyo Women's Medical University Medical Center East, 2-1-10 Nishiogu, Arakawaku, Tokyo, Japan. sachikoaoki@eagle.ocn.ne.jp

Acta Oto-Laryngologica

|October 30, 2009

Summary

The caloric vestibular test with head-tilt effectively assesses vertical semicircular canal function. This simple office procedure helps evaluate the posterior and anterior canals for proper function in patients.

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Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm

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Published on: April 28, 2020

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Last Updated: Jun 19, 2026

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Published on: April 18, 2019

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm

Published on: April 28, 2020

Area of Science:

Vestibular system physiology
Otolaryngology
Neuroscience

Background:

Assessing vertical semicircular canal function is crucial for diagnosing vestibular disorders.
Traditional methods may be complex or time-consuming.
A need exists for a simple, reliable office-based assessment.

Purpose of the Study:

To evaluate the function of the vertical semicircular canals.
To determine if a head-tilt caloric test can assess vertical canal function.

Main Methods:

Cold water caloric stimulation was applied to 100 ears with normal horizontal canal response.
Head was tilted 45 degrees to position posterior and anterior canals to earth-vertical during caloric response.
Eye movements were recorded using two-dimensional electronystagmography.

Main Results:

A down-beating vertical nystagmus component intensified when the posterior canal was earth-vertical.
An up-beating vertical nystagmus component intensified when the anterior canal was earth-vertical.
These directional changes indicated functioning vertical canals.

Conclusions:

The head-tilt caloric test is a viable office procedure.
This method can effectively assess the function of the vertical semicircular canals.
It provides a practical tool for clinicians evaluating vestibular function.