37th WOrld Audiology Congress, Seoul, Güney Kore, 24 - 27 Mayıs 2026, sa.34, ss.393, (Özet Bildiri)
Abstract
Motion sickness is a complex set of symptoms that occur under various travel conditions. This study was conducted to elucidate the brain activation patterns caused by motion sickness. The study was conducted 47 participants (study group: 23, control group: 24). Real travel videos were used in the study to simulate reallife travel conditions and induce motion sickness. The stimulus videos were selected from real travel videos available on the YouTube virtual reality (VR) platform. The study was planned in five stages to provide five different travel experiences in a single session. The videos were presented using VR headsets. Continuous EEG recordings were obtained throughout the session. Comparative analysis was performed between groups by correlating objective data with self-report questionnaires. Furthermore, statistical analyses were conducted on EEG frequency bands most associated with motion sickness in the literature (theta [4.0–7.0 Hz], alpha [7.0–13.0 Hz], and beta oscillation [13–20 Hz]). Statistically significant differences were observed in the alpha band among the participants. In participants with high sensitivity to motion sickness, alpha waves emerged in the occipital region (p = 0.0017), whereas in adaptive and non-motion sick individuals, increased activation in the central region in the alpha band was detected. This activation corresponds with the mu rhythm, which is indicative of adaptive capability and information processing skills. The presence of occipital alpha waves in individuals with high sensitivity to motion sickness while their eyes are open aligns with the inhibition hypothesis and is interpreted as an indicator of their coping efforts.
Keywords: Motion sickness, Electroencephalography, Virtual Reality