Simulator Sickness in Maritime Training: A Comparative Study of Conventional Full-Mission Ship Bridge Simulator and Virtual Reality

Maritime training increasingly employs conventional full-mission bridge simulators (FMBS) and virtual reality (VR). This study aims to compare the incidence and severity of simulator sickness induced by a conventional FMBS and an equivalent VR system during a maritime navigation task. Thirty-two final-year maritime students with no prior VR experience participated in two 30 min sessions (conventional FMBS first, then VR after a minimum two-day break), performing an identical navigational watch scenario as observers. Pre- and post-session SSQ scores were collected using a standardized questionnaire, supplemented by post-study qualitative interviews. The results indicated no significant change in SSQ scores following the conventional simulator session. In the VR session, a slight increase in Total SSQ and in Oculomotor and Disorientation subscales was observed (uncorrected p-values < 0.05), but none of these remained significant after applying a Holm–Bonferroni correction. The Nausea subscale did not increase in either condition. Notably, participants’ baseline SSQ scores were lower before the VR trial than before the conventional trial, suggesting a possible novelty effect. Qualitative feedback reflected VR’s high immersion yet also some physical discomfort (e.g., headset weight and visual resolution), with most participants preferring the conventional simulator for longer training. Overall, while VR’s current hardware had comfort limitations, using a standard calm-weather training scenario in VR produced only a minimal, statistically non-significant increase in simulator sickness compared to the conventional simulator.