Journal
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
Volume 29, Issue 7, Pages 3238-3250Publisher
IEEE COMPUTER SOC
DOI: 10.1109/TVCG.2022.3156734
Keywords
Training; Particle measurements; Atmospheric measurements; Heart rate variability; Stress; Physiology; Task analysis; Computer graphics; virtual reality; professional training; biofeedback
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This study compares the effectiveness of virtual environment (VE) and real environment (RE) in training firefighters. The results indicate that participants in the VE experienced less physiological stress, had better knowledge transfer, but the overall effectiveness was lower than the RE.
The use of Virtual Reality (VR) technology to train professionals has increased over the years due to its advantages over traditional training. This paper presents a study comparing the effectiveness of a Virtual Environment (VE) and a Real Environment (RE) designed to train firefighters. To measure the effectiveness of the environments, a new method based on participants' Heart Rate Variability (HRV) was used. This method was complemented with self-reports, in the form of questionnaires, of fatigue, stress, sense of presence, and cybersickness. An additional questionnaire was used to measure and compare knowledge transfer enabled by the environments. The results from HRV analysis indicated that participants were under physiological stress in both environments, albeit with less intensity on the VE. Regarding reported fatigue and stress, the results showed that none of the environments increased such variables. The results of knowledge transfer showed that the VE obtained a significant increase while the RE obtained a positive but non-significant increase (median values, VE: before - 4 after - 7, p = .003; RE: before - 4 after - 5, p = .375). Lastly, the results of presence and cybersickness suggested that participants experienced high overall presence and no cybersickness. Considering all results, the authors conclude that the VE provided effective training but that its effectiveness was lower than that of the RE.
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