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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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Updated: Oct 3, 2025

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

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Visual fixations and visually induced dizziness: An exploratory study.

Shikha Chaudhary¹, David Barbado², Nicola Saywell³

¹Rehabilitation Innovation Centre, Health and Rehabilitation Research Institute, Faculty of Health and Environmental Science, Auckland University of Technology, Auckland 0627, New Zealand.

|February 15, 2022

Summary

This summary is machine-generated.

Individuals with visually induced dizziness experience visual instability and increased sway, particularly in visually complex environments. This research sheds light on the mechanisms behind these symptoms, aiding future interventions.

Keywords:

Complex environments Dizziness Eye tracking Postural control Vestibular disorder Visual fixations Visually induced dizziness

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Area of Science:

Vestibular Neuroscience
Human Physiology
Visual Perception

Background:

Visually induced dizziness (VID) is a common sequela of vestibular disorders.
Symptoms include nausea, dizziness, and imbalance in visually stimulating environments like malls.
The underlying mechanisms of VID remain poorly understood.

Purpose of the Study:

To investigate visual fixation characteristics and postural sway in adults with VID.
To compare these characteristics against healthy adults under varying visual complexity.
To elucidate the physiological underpinnings of visually induced dizziness.

Main Methods:

A cross-sectional study involving 20 adults with VID and 20 healthy controls.
Participants maintained visual fixation on a screen with backgrounds of increasing complexity.
Recorded metrics included visual refixations and center of mass/pressure movement.

Main Results:

Adults with VID demonstrated significantly more visual refixations compared to controls (p < 0.01).
Increased velocity of head and body center of mass movement was observed in the VID group (p < 0.01 and p < 0.05).
These differences were most pronounced in complex and moving visual conditions.

Conclusions:

Adults with VID exhibit visual fixational instability and greater postural/head sway, especially with complex visual stimuli.
These findings correlate with subjective reports of symptom exacerbation in busy environments.
The results provide a basis for developing targeted interventions for visually induced dizziness.