Multisensory integration of visual cues from first- to third-person perspective avatars in the perception of self-motion
| Autor: | Julien Barra, Marion Giroux, Christian Graff, Michel Guerraz |
|---|---|
| Přispěvatelé: | Laboratoire de Psychologie et NeuroCognition (LPNC ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Linguistics and Language
Movement media_common.quotation_subject ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Illusion Experimental and Cognitive Psychology Virtual reality 050105 experimental psychology Language and Linguistics 03 medical and health sciences [SCCO]Cognitive science 0302 clinical medicine Perception Humans 0501 psychology and cognitive sciences Sensory cue ComputingMilieux_MISCELLANEOUS ComputingMethodologies_COMPUTERGRAPHICS media_common Avatar 05 social sciences Perspective (graphical) Virtual Reality Multisensory integration Illusions Self Concept Sensory Systems Embodied cognition Visual Perception Cues Psychology 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Attention, Perception, and Psychophysics Attention, Perception, and Psychophysics, Springer Verlag, 2021, ⟨10.3758/s13414-021-02276-3⟩ |
| ISSN: | 1943-3921 1943-393X |
| Popis: | In the perception of self-motion, visual cues originating from an embodied humanoid avatar seen from a first-person perspective (1st-PP) are processed in the same way as those originating from a person’s own body. Here, we sought to determine whether the user’s and avatar’s bodies in virtual reality have to be colocalized for this visual integration. In Experiment 1, participants saw a whole-body avatar in a virtual mirror facing them. The mirror perspective could be supplemented with a fully visible 1st-PP avatar or a suggested one (with the arms hidden by a virtual board). In Experiment 2, the avatar was viewed from the mirror perspective or a third-person perspective (3rd-PP) rotated 90° left or right. During an initial embodiment phase in both experiments, the avatar’s forearms faithfully reproduced the participant’s real movements. Next, kinaesthetic illusions were induced on the static right arm from the vision of passive displacements of the avatar’s arms enhanced by passive displacement of the participant’s left arm. Results showed that this manipulation elicited kinaesthetic illusions regardless of the avatar’s perspective in Experiments 1 and 2. However, illusions were more likely to occur when the mirror perspective was supplemented with the view of the 1st-PP avatar’s body than with the mirror perspective only (Experiment 1), just as they are more likely to occur in the latter condition than with the 3rd-PP (Experiment 2). Our results show that colocalization of the user’s and avatar’s bodies is an important, but not essential, factor in visual integration for self-motion perception. |
| Databáze: | OpenAIRE |
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