ICAT-EGVE2023
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Browsing ICAT-EGVE2023 by Author "Chardonnet, Jean-Rémy"
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Item Does the Virtual Environment Design influence Learning?(The Eurographics Association, 2023) Minder, Eloise; Chardonnet, Jean-Rémy; Jean-Marie Normand; Maki Sugimoto; Veronica SundstedtPast studies have shown that virtual reality (VR) is an advantageous medium to learn or train in various situations over traditional methods. Virtual environments are usually modeled and implemented to be representative of the training situations. However, in an objective to maximize the effectiveness and efficiency of VR for knowledge transfer, we may wonder whether the virtual environment itself really matters or not. In this paper, we propose to compare two different virtual environments implemented for the same training purpose. The scenario chosen relates to learning the right procedure to limit the spread of viruses. The two environments have been designed to be radically opposed: the first one is a dreamlike environment, while the second represents a medical laboratory. A user study was performed to compare the level of engagement and knowledge acquired by the participants in both environments. User experience, commitment, emotion and learning outcomes were measured. Results indicate no significant difference in the environment design on learning, feeling, commitment and sense of presence.Item Don't Denigrate the CAVE! A Comparative Examination of CAVE and HMD for Navigation in Virtual Worlds(The Eurographics Association, 2023) Combe, Theo; Chardonnet, Jean-Rémy; Mérienne, Frédéric; Ovtcharova, Jivka; Mestre, Daniel; Jean-Marie Normand; Maki Sugimoto; Veronica SundstedtThis paper conducts a comprehensive analysis of user experiences by comparing navigation and cybersickness between two distinct categories of immersive devices: CAVE and HMD. Using consistent methodology and analysis for both technologies in the same application to underscores disparities in user experiences, particularly in navigation and exploration tasks, addressing a gap in the existing literature. The study comprises two experiments with differing navigation paradigms. The first demanded active participant navigation in a complex virtual environment, focusing on distinctions like field of view and field of regard intrinsic to CAVE and HMD technologies. Physiological parameters (heart rate and skin conductance) and the Virtual Reality Sickness Questionnaire (VRSQ) were recorded to assess cybersickness levels. Results indicate no significant variations in self-rated cybersickness but a higher heart rate for HMD and longer completion time in the CAVE. Participants favored HMDs personally. In the second experiment, participants were guided through an automated virtual environment (VE) walk, recording similar physiological and psychological measurements. Although no significant inter-device variations emerged in psychological measurements, a notable influence of the HMD on physiological cybersickness data and postural stability was observed. Nevertheless, other measurements and participant feedback did not align with substantial cybersickness. Overall, our results provide a better understanding of the differences between these two VR displays.