Abstract
Objectives
To evaluate effects of optokinetic and rotational stimulus in individuals with and without motion sickness (MS) using fHIT.
Methods
The study included subjects aged 18–40; 35 subjects with MS for MS group and 35 subjects without vertigo for control group. Percentage of the correct answer (% CA) with and without optokinetic stimulus (o-fHIT) in the frontal plane in the fHIT test was compared in both groups. In addition, both group subjects were seated on an ordinary rotating office chair. % CA was compared between groups by applying rotational fHIT (r-fHIT) test after the subjects were rotated randomly to the right and left and also simultaneously moved their heads in the vertical plane.
Results
There was no significant difference in % CA in fHIT o-fHIT and r-fHIT in the control group. Both groups showed a significant difference in % CA for fHIT, o-fHIT, and r-fHIT for all SCCs (p < 0.05).
Conclusions
Since individuals with MS are affected by optokinetic and rotational stimuli, fHIT performed after these stimuli can be used as an objective confirming test for diagnosing MS.
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Acknowledgements
This study would not be possible without support of Erişçi Company in Turkiye that provided fHIT device. Our study was presented as an oral presentation at XXXI Bárány Society Meeting that was held in Madrid from May 9 to 11, 2022.
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The authors report that no funding was obtained for the work that resulted in the article or its preparation.
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Karababa, E., Satar, B. & Genç, H. Evaluation of effects of optokinetic and rotational stimuli with functional head impulse test (fHIT) in individuals with motion sickness. Eur Arch Otorhinolaryngol 280, 3149–3156 (2023). https://doi.org/10.1007/s00405-023-07819-y
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DOI: https://doi.org/10.1007/s00405-023-07819-y