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Updated: Jun 6, 2025
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Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm
Published on: April 28, 2020
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Graviception Uncertainty, Spatial Anxiety, and Derealization in Patients with Persistent Postural-Perceptual
Kathrine Jáuregui-Renaud1, Rodrigo Cabrera-Pereyra1,2, José Adán Miguel-Puga1
1Unidad de Investigación Médica en Otoneurología, Instituto Mexicano del Seguro Social, Ciudad de México 06720, Mexico.
Journal of Clinical Medicine
|November 27, 2024
Summary
Patients with Persistent Postural-Perceptual Dizziness (PPPD) show imprecise graviception, impacting postural control and mental well-being. This reduced precision contributes to their overall dizziness handicap.
Area of Science:
- Neuroscience
- Vestibular System Disorders
- Psychophysics
Background:
- Persistent Postural-Perceptual Dizziness (PPPD) is a common cause of chronic dizziness.
- PPPD is characterized by ineffective postural control, visual dependence, and emotional symptoms.
Purpose of the Study:
- To investigate the relationship between graviception, postural control, and psychological factors in PPPD patients.
- To identify contributing factors to the dizziness-related handicap in individuals with PPPD.
Main Methods:
- Compared 53 PPPD patients with 53 healthy adults using vestibular function tests, Subjective Visual Vertical (SVV) estimation, and posturography.
- Administered questionnaires assessing unsteadiness, spatial anxiety, handicap, and mental health symptoms.
- Utilized analysis of covariance to examine relationships between variables.
Main Results:
- PPPD patients exhibited reduced precision in SVV estimation compared to controls.
- Imprecise SVV estimation correlated with postural sway, spatial anxiety, and mental health symptoms.
- These factors significantly contributed to the dizziness-related handicap in PPPD patients.
Conclusions:
- Imprecise graviception may underlie postural instability and mental symptoms in PPPD.
- These deficits collectively contribute to the significant handicap experienced by PPPD patients.
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