The effects of body position on Reflexive Motor Acts and the sense of presence in virtual environments

Abstract The purpose of this study was to measure the subject’s sense of presence while they performed a task (riding a bicycle downhill) in a virtual reality (VR) environment and to compare it by body position (standing vs. sitting) and gender. The sample consisted of 35 subjects (19 male and 16 female) between 17 and 33 years of age. A translated and validated Portuguese version of the Igroup Presence Questionnaire (IPQp) and the Reflexive Motor Acts (RMAs), based on direct observation, were used as metrics. The results showed significant differences between body position at the level of Experienced Realism, Spatial Presence and Overall Sense of Presence. When measuring RMAs, it was demonstrated that people in the sitting position presented a higher frequency. We concluded that body position influences perceptions of credibility, which has an impact on the sense of presence. No differences were identified between the genders.

[1]  Carlos M. Coelho,et al.  Media Presence and Inner Presence: The Sense of Presence in Virtual Reality Technologies , 2006 .

[2]  Alberto Betella,et al.  Embodied interaction with complex neuronal data in mixed-reality , 2012, VRIC.

[3]  Matthew Lombard,et al.  At the Heart of It All: The Concept of Presence , 2006 .

[4]  T. Drew,et al.  Cortical and brainstem control of locomotion. , 2004, Progress in brain research.

[5]  D. Angelaki,et al.  Vestibular system: the many facets of a multimodal sense. , 2008, Annual review of neuroscience.

[6]  Mary C. Whitton,et al.  A Psychophysical Experiment Regarding Components of the Plausibility Illusion , 2017, IEEE Transactions on Visualization and Computer Graphics.

[7]  T. Fuchs,et al.  Embodied arts therapies , 2011 .

[8]  A. Shumway-cook.  Normal postural control , 2001 .

[9]  Marcin Czub,et al.  How Body Movement Influences Virtual Reality Analgesia? , 2014, 2014 International Conference on Interactive Technologies and Games.

[10]  Karol Myszkowski,et al.  Wide Field Of View Varifocal Near-Eye Display Using See-Through Deformable Membrane Mirrors , 2017, IEEE Transactions on Visualization and Computer Graphics.

[11]  Matthew Price,et al.  Does engagement with exposure yield better outcomes? Components of presence as a predictor of treatment response for virtual reality exposure therapy for social phobia. , 2011, Journal of anxiety disorders.

[12]  Nadia Magnenat-Thalmann,et al.  Believability and Interaction in Virtual Worlds , 2005, MMM.

[13]  Laurence R. Harris,et al.  Vestibular cues and virtual environments: choosing the magnitude of the vestibular cue , 1999, Proceedings IEEE Virtual Reality (Cat. No. 99CB36316).

[14]  A Akinwuntan,et al.  Simulator Adaptation Syndrome (SAS) and the Vestibular System: An Exploratory Study , 2014 .

[15]  Mel Slater,et al.  An Experimental Exploration of Presence in Virtual Environments , 2013 .

[16]  Edwin H. Blake,et al.  The Effects of Mediation in a Storytelling Virtual Environment , 2003, International Conference on Virtual Storytelling.

[17]  Heidi Sveistrup,et al.  The Effect of Two Types of Virtual Reality on Voluntary Center of Pressure Displacement , 2003, Cyberpsychology Behav. Soc. Netw..

[18]  António Augusto de Sousa,et al.  Adaptation and Validation of the Igroup Presence Questionnaire (IPQ) in a Portuguese Sample , 2016, PRESENCE: Teleoperators and Virtual Environments.

[19]  Patrice Bouvier,et al.  The Five Pillars of Presence: Guidelines to Reach Presence , 2008 .

[20]  M. Sholl,et al.  The relation of sex and sense of direction to spatial orientation in an unfamiliar environment , 2000 .

[21]  Jonathan Steuer,et al.  Defining virtual reality: dimensions determining telepresence , 1992 .

[22]  F Lacquaniti,et al.  Posture and movement: coordination and control. , 1997, Archives italiennes de biologie.

[23]  Mel Slater,et al.  Depth of Presence in Virtual Environments , 1994, Presence: Teleoperators & Virtual Environments.

[24]  M. Krijn,et al.  Treatment of acrophobia in virtual reality: the role of immersion and presence. , 2004, Behaviour research and therapy.

[25]  Ralph Schroeder,et al.  Possible Worlds: The Social Dynamic of Virtual Reality Technology , 1996 .

[26]  J. Barton,et al.  Age and gender differences in various topographical orientation strategies , 2011, Brain Research.

[27]  George Drettakis,et al.  Auditory-Visual Virtual Reality as a Diagnostic and Therapeutic Tool for Cynophobia , 2013, Cyberpsychology Behav. Soc. Netw..

[28]  Rebecca J. St George,et al.  The sense of self‐motion, orientation and balance explored by vestibular stimulation , 2011, The Journal of physiology.

[29]  Mel Slater,et al.  Place illusion and plausibility can lead to realistic behaviour in immersive virtual environments , 2009, Philosophical Transactions of the Royal Society B: Biological Sciences.

[30]  Johannes Dichgans,et al.  Motion habituation: Inverted self-motion perception and optokinetic after-nystagmus , 2004, Experimental Brain Research.