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Title: The contribution of real-time mirror reflections of motor actions on virtual body ownership in an immersive virtual environment
Author: González-Franco, Mar
Pérez Marcos, Daniel
Spanlang, Bernhard
Slater, Mel
Keywords: Realitat virtual
Interacció persona-ordinador
Virtual reality
Human-computer interaction
Issue Date: 2010
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Abstract: This paper reports an experiment that investigated people"s body ownership of an avatar that was observed in a virtual mirror. Twenty subjects were recruited in a within-groups study where 10 first experienced a virtual character that synchronously reflected their upper-body movements as seen in a virtual mirror, and then an asynchronous condition where the mirror avatar displayed prerecorded actions, unrelated to those of the participant. The other 10 subjects experienced the conditions in the opposite order. In both conditions the participant could carry out actions that led to elevation above ground level, as seen from their first person perspective and correspondingly in the mirror. A rotating virtual fan eventually descended to 2m above the ground. The hypothesis was that synchronous mirror reflection would result in higher subjective sense of ownership. A questionnaire analysis showed that the body ownership illusion was significantly greater for thesynchronous than asynchronous condition. Additionally participants in the synchronous condition avoided collision with the descending fan significantly more often than those in the asynchronous condition. The results of this experiment are put into context within similar experiments on multisensory correlation and body ownership within cognitive neuroscience.
Note: Reproducció del document publicat a:
It is part of: IEEE Computer Graphics and Applications, 2010
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ISSN: 0272-1716
Appears in Collections:Articles publicats en revistes (Psicologia Clínica i Psicobiologia)

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