From presence to consciousness through virtual reality

Sanchez-Vives, Maria V.; Slater, Mel

doi:10.1038/nrn1651

Cited by 1,378 publications

(926 citation statements)

References 82 publications

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“…However, this result is not necessarily related to ownership, since skin conductance levels could rise in response to any arousing event. It is more likely to be related to presence (Sanchez-Vives & Slater, 2005). Another argument for the similar physiological responses across conditions could be that, since the threatening event occurred 1-3 s after the last stimulation, the illusion of ownership could have emerged in the absence of other stimulation solely due to the 1PP with respect to the static colocated body.…”

Section: Discussionmentioning

confidence: 97%

Measuring the Effects through Time of the Influence of Visuomotor and Visuotactile Synchronous Stimulation on a Virtual Body Ownership Illusion

2014

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Abstract. Previous studies have examined the experience of owning a virtual surrogate body or body part through specific combinations of cross-modal multisensory stimulation. Both visuomotor (VM) and visuotactile (VT) synchronous stimulation have been shown to be important for inducing a body ownership illusion, each tested separately or both in combination. In this study we compared the relative importance of these two cross-modal correlations, when both are provided in the same immersive virtual reality setup and the same experiment. We systematically manipulated VT and VM contingencies in order to assess their relative role and mutual interaction. Moreover, we present a new method for measuring the induced body ownership illusion through time, by recording reports of breaks in the illusion of ownership ('breaks') throughout the experimental phase. The balance of the evidence, from both questionnaires and analysis of the breaks, suggests that while VM synchronous stimulation contributes the greatest to the attainment of the illusion, a disruption of either (through asynchronous stimulation) contributes equally to the probability of a break in the illusion.

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Section: Discussionmentioning

confidence: 97%

Measuring the Effects through Time of the Influence of Visuomotor and Visuotactile Synchronous Stimulation on a Virtual Body Ownership Illusion

2014

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“…Disorders or discrepancies in this sense of presence are associated with many dissociative states and conditions (Apps & Tsakiris, 2014;Braithwaite, Broglia & Watson, 2014;Brugger, 2002;Critchley, Wiens, Rotshtein, Ohman, & Dolan, 2004;Sanchez-Vives & Slater, 2005;Seth, 2009;Seth, Suzuki, & Critchley, 2012). One example is the dissociative condition known as depersonalization disorder (DPD).…”

Section: Introductionmentioning

confidence: 99%

Uncomfortably numb: new evidence for suppressed emotional reactivity in response to body-threats in those predisposed to sub-clinical dissociative experiences

Dewe

Watson

Braithwaite

2016

Cognitive Neuropsychiatry

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“…There have been many such studies, referred to in [23] and in the meta study [6]. However, Psi has rarely been studied, yet for many applications the illusion that events in the scenario are really occurring may be critical.…”

Section: Presencementioning

confidence: 99%

The Plausibility of a String Quartet Performance in Virtual Reality

Bergström

Azevedo

Papiotis

et al. 2017

IEEE Trans. Visual. Comput. Graphics

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-We describe an experiment that explores the contribution of auditory and other features to the illusion of plausibility in a virtual environment that depicts the performance of a string quartet. 'Plausibility' refers to the component of presence that is the illusion that the perceived events in the virtual environment are really happening. The features studied were: Gaze (the musicians ignored the participant, the musicians sometimes looked towards and followed the participant's movements), Sound Spatialization (Mono, Stereo, Spatial), Auralization (no sound reflections, reflections corresponding to a room larger than the one perceived, reflections that exactly matched the virtual room), and Environment (no sound from outside of the room, birdsong and wind corresponding to the outside scene). We adopted the methodology based on color matching theory, where 20 participants were first able to assess their feeling of plausibility in the environment with each of the four features at their highest setting. Then five times participants started from a low setting on all features and were able to make transitions from one system configuration to another until they matched their original feeling of plausibility. From these transitions a Markov transition matrix was constructed, and also probabilities of a match conditional on feature configuration. The results show that Environment and Gaze were individually the most important factors influencing the level of plausibility. The highest probability transitions were to improve Environment and Gaze, and then Auralization and Spatialization. We present this work as both a contribution to the methodology of assessing presence without questionnaires, and showing how various aspects of a musical performance can influence plausibility.

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From presence to consciousness through virtual reality

Cited by 1,378 publications

References 82 publications

Measuring the Effects through Time of the Influence of Visuomotor and Visuotactile Synchronous Stimulation on a Virtual Body Ownership Illusion

Measuring the Effects through Time of the Influence of Visuomotor and Visuotactile Synchronous Stimulation on a Virtual Body Ownership Illusion

Uncomfortably numb: new evidence for suppressed emotional reactivity in response to body-threats in those predisposed to sub-clinical dissociative experiences

The Plausibility of a String Quartet Performance in Virtual Reality

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