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Article type: Research Article
Authors: Batuk, Isa Tuncay; * | Batuk, Merve Ozbal | Aksoy, Songul
Affiliations: Department of Audiology, Hacettepe University, Ankara, Turkey
Correspondence: [*] Corresponding author: Isa Tuncay Batuk, Department of Audiology, Hacettepe University, Ankara, Turkey. Tel.: +90 312 305 16 67; Fax: +90 312 305 2054; E-mail: odybatuk@gmail.com.
Abstract: BACKGROUND/OBJECTIVE:Few studies have suggested a relationship between vestibular system and sleep deprivation. The aim of the present study is to investigate the effects of acute sleep deprivation lasting 24 hours or more on the postural balance and the visual abilities related to the vestibular system in healthy young adults. METHODS:Thirty-one healthy young adults (8 males, 23 female; ages 18– 36 years) who had experienced at least 24 hours of sleep deprivation were included in the study. Subjects made two visits to the test laboratory. One visit was scheduled during a sleep deprivation (SD) condition, and the other was scheduled during a daily life (DL) condition. Five tests— the Sensory Organization Test (SOT), Static Visual Acuity Test (SVA), Minimum Perception Time Test (mPT), Dynamic Visual Acuity Test (DVA), and Gaze Stabilization Test (GST)— were performed using a Computerized Dynamic Posturography System. RESULTS:A statistically significant difference was found between SD and DL measurements in somatosensorial (p = 0.003), visual (p = 0.037), vestibular (p = 0.008) ratios, and composite scores (p = 0.001) in SOT. The mPT results showed a statistically significant difference between SD and DL conditions (p = 0.001). No significant difference was found between SD and DL conditions in the comparison of the mean SVA (p = 0.466), DVA (p = 0.192), and GST head velocity values (p = 0.160). CONCLUSIONS:Sleep deprivation has a considerable impact on the vestibular system and visual perception time in young adults. Increased risk of accidents and performance loss after SD were thought to be due to the postural control and visual processing parameters rather than dynamic visual parameters of the vestibular system.
Keywords: Sleep deprivation, vestibular system, dynamic visual acuity, visual perception, postural stability
DOI: 10.3233/VES-200778
Journal: Journal of Vestibular Research, vol. 30, no. 6, pp. 383-391, 2020
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