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Bachelor's Thesis
Author of thesis: Bc. Marek Jordán
Acad. year: 2025/2026
Supervisor: Ing. Petr Šopák
Reviewer: Ing. Adam Chromý, Ph.D.
This bachelor's thesis deals with the human balance system and the possibilities of measuring vestibular reflexes using fully immersive virtual reality (VR). The theoretical part describes the mechanisms of the vestibulo-ocular (VOR), vestibulo-collic (VCR), and vestibulo-spinal (VSR) reflexes, including the issue of sensory conflict and the onset of cybersickness. Furthermore, virtual reality technology, its medical applications, and the technical specifications of the Meta Quest 2 headset are presented, with an emphasis on spatial user movement tracking. The main objective of the thesis was to design, implement, and test a custom VR application in the Unity game engine to serve as an experimental tool for evaluating balance and measuring reaction times. The practical part details the development of three experimental scenes (Room, Boat, Mountain) utilizing hand-tracking technology and physical controllers to induce targeted visual-vestibular stimulation, simulate postural instability through tilts, and test user reactions to an unexpected fall. Subsequent data analysis from real measurements on tested subjects confirmed that virtual reality is an effective environment for reflex analysis. The results demonstrate a rapid motor and cognitive adaptation of the users, which manifested as a significant reduction in reaction times upon repeated exposure to critical situations.
VR, Virtual reality, VCR, VSR, Vestibulo-collic reflex, Vestibulo-spinal reflex, Vestibular reflexes, cybersickness, balance, Oculus Meta Quest
Date of defence
17.06.2026
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Student obhájil bakalářskou práci. Komise neměla žádné námitky k řešené práci. V průběhu odborné rozpravy student reagoval na dotazy oponenta. Dále zodpověděl dotazy týkající se toho, zda měřené časové intervaly reprezentují v jednotlivých scénách odlišné veličiny, a způsobu řešení počátku reakce člověka na podnět a jeho odlišení od běžného pohybu hlavy.
Language of thesis
Czech
Faculty
Fakulta elektrotechniky a komunikačních technologií
Department
Department of Control and Instrumentation
Study programme
Automation and Measurement (BPC-AMT)
Composition of Committee
prof. Ing. Rudolf Jalovecký, CSc. (předseda) prof. Ing. Luděk Žalud, Ph.D. (místopředseda) Ing. Martin Čala, Ph.D. (člen) Ing. Jakub Dokoupil, Ph.D. (člen) Ing. Adam Chromý, Ph.D. (člen) doc. Ing. Miroslav Jirgl, Ph.D. (člen)
Supervisor’s reportIng. Petr Šopák
Grade proposed by supervisor: A
Reviewer’s reportIng. Adam Chromý, Ph.D.
Grade proposed by reviewer: B
Responsibility: Mgr. et Mgr. Hana Odstrčilová