The static subjective visual vertical (SVV) was assessed in 24 healthy volunteers with different preset angles (i.e., 10, 20, and 30 degrees), and in 20 other volunteers, the static SVV was tested and retested 1 week later. The static SVV results are influenced by the side of the preset angle (Wilcoxon test, ≤ 0.001), but not by the preset angle deviation. The test-retest static SVV outcomes are stable at a group level; however, they show statistically relevant variability at an individual level (-0.240 ≤ intraclass correlation coefficient [ICC] ≤ 0.508). A robust static SVV protocol is described in this paper.
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http://dx.doi.org/10.3109/01658107.2016.1156707 | DOI Listing |
Brain Res Bull
January 2025
Department of Health, Graduate School, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 31116, Republic of Korea. Electronic address:
Introduction: The thalamus regulates various sensory information to each related brain area. The vestibular nucleus transmits information of motor control to the thalamus regulating coordination function. The vestibulothalamic tract (VTT) is a neural pathway between the vestibular nucleus and thalamus that processes vestibular information for postural balance and spatial perception.
View Article and Find Full Text PDFMult Scler Relat Disord
December 2024
Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania.
Background: Dizziness and balance disturbances are common in patients with MS. Subjective visual vertical (SVV) is a test of vestibular perception that allows clinicians to evaluate the integration of multiple sensory inputs for spatial orientation in the CNS. We hypothesize that central vestibular impairment caused by active MS lesions may be reflected in the modified SVV testing.
View Article and Find Full Text PDFJ Clin Med
November 2024
Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México 06720, Mexico.
: Persistent Postural-Perceptual Dizziness (PPPD) is a frequent diagnosis in patients with chronic dizziness, ineffective postural control, visual dependence, and emotional symptoms. : 53 patients with PPPD (25-84 years old) and 53 adults (29-84 years old) with no vestibular disease agreed to participate in this study. Assessments included: vestibular function tests (sinusoidal yaw rotation and vestibular-evoked myogenic potentials); accuracy and precision of Subjective Visual Vertical (SVV) estimation while static and during on-axis yaw rotation; static posturography with open/closed eyes and 30° neck extension, while standing on hard/soft surface; questionnaires on symptoms of unsteadiness, spatial anxiety, dizziness-related handicap, anxiety/depression, depersonalization/derealization, and perceived stress.
View Article and Find Full Text PDFPercept Mot Skills
December 2024
Department of Health Science, Graduate School of Health Sciences, Gunma PAZ University, Takasaki, Japan.
Indian J Otolaryngol Head Neck Surg
August 2024
Department of Community and Family Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh 522503 India.
The inner ear is responsible for balance and auditory function. Sensorineural hearing loss (SNHL) affects auditory function across various age groups. Vestibular apparatus, particularly the otolith organ can also be affected in cases of SNHL because of the close proximity of the otolith organs with the cochlea inside the bony labyrinth.
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