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Updated: May 17, 2026
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Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm
Published on: April 28, 2020
Software for subjective visual vertical assessment: an observational cross-sectional study
Theo Zeferino Pavan1, Martha Funabashi, José Ailton Oliveira Carneiro
1Department of Physics, School of Philosophy, Sciences, and Literature of Ribeirão Preto, University of São Paulo, Ribeirão Preto - SP, Brazil.
Brazilian Journal of Otorhinolaryngology
|October 31, 2012
Summary
This study developed a virtual system for the subjective visual vertical exam, offering a practical and accurate tool for clinical use in assessing spatial orientation. Healthy subjects showed reliable measurements in static and dynamic conditions.
Area of Science:
- Neuroscience
- Human Motor Control
- Clinical Assessment Tools
Background:
- Spatial orientation is crucial for posture, gait, and motor activities.
- The subjective visual vertical (SVV) exam assesses an individual's perception of vertical orientation.
- Accurate SVV assessment is vital for understanding and diagnosing neurological and vestibular disorders.
Purpose of the Study:
- To develop a virtual system for evaluating the subjective visual vertical exam.
- To create a user-friendly tool for clinical practice.
- To determine the SVV values in healthy subjects using the novel software.
Main Methods:
- An observational cross-sectional study involving thirty healthy volunteers.
- Participants performed the SVV exam using a computer mouse to adjust a virtual line's vertical position.
- Measurements were taken under static (white background) and dynamic (rotating circles) conditions.
Main Results:
- Mean SVV values were -0.372º ± 1.21 in static conditions.
- Dynamic conditions yielded mean values of 1.53º ± 1.80 (clockwise) and -1.11º ± 2.46 (counterclockwise).
- The software demonstrated practicality and accuracy in capturing SVV measurements.
Conclusions:
- The developed virtual system is a practical and accurate tool for clinical SVV assessment.
- The software facilitates routine clinical use for evaluating spatial orientation.
- This technology aids in understanding normal SVV values in healthy individuals.
