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Theses

Le sentiment de présence en réalité virtuelle : rôle modérateur des facteurs humains sur la performance

Abstract : Virtual reality has emerged as a new paradigm for research and scientific applications. The ability of this technology to simulate complex custom-made situations offers researchers the opportunity to study behaviours with a laboratory methodological control and an ecological dimensions. The latter is made possible by the emergence of the feeling (or “sense”) of presence, the sensation of "being there", a phenomenon at the heart of in virtuo studies. The present work is part of a meth-odological and fundamental framework aimed at advancing the emergence of a body of knowledge on virtual reality and its sense of presence. The global understanding of the sense of presence remains very limited, especially with regard to its links with performance in virtual reality. Whether it is for diagnostic purposes or for the investigation of human behaviour, the question of the relationship between the sense of presence and performance is crucial: if presence promotes performance, for example by increasing scores during a neuropsychological test, it becomes a systematic bias inherent to the tool that must be controlled in any rigorous experiment. This ques-tion remains little studied in the literature, mostly because it is complexified by the interactions between a whole set of adjacent variables – gender, cybersickness, cognitive style, video game experience – but also because performance can take many different forms, making it particularly difficult to infer directional causality. In order to explore this question, the present work proposes three experiments on three different types of evaluation: executive functions, spatial cognition, semantic learning. The data collected in this way is also the object of transversal analyses de-signed to compare the experiments. Together, these results seem to suggest the existence of two components of virtual reality. The first, the cognitive profile, is made up of individual human factors interacting with system factors – notably the degree of integration of the task into the virtual envi-ronment – to build the second, the user experience. The sense of presence and performance, but also their relationship depends on the user experience. This model, presented in conclusion, is discussed with regard to different theoretical approaches to cognition, notably the ecological and computational theories. This discussion makes it possible to draw up a list of recommendations and perspectives for virtual reality users, including the possibilities of estimating a priori the user experience of an individual immersed in virtual reality.
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Arthur Maneuvrier Hervieu. Le sentiment de présence en réalité virtuelle : rôle modérateur des facteurs humains sur la performance. Psychologie. Normandie Université; Université de Montréal, 2020. Français. ⟨NNT : 2020NORMC035⟩. ⟨tel-03198706⟩

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