Skarbez, R;
Neyret, S;
Brooks, FP;
Whitton, MC;
Slater, M;
(2017)
A Psychophysical Experiment Regarding Components of the Plausibility Illusion.
In: Steinicke, Frank and Mohler, Betty and Babu, Sabarish and Interrante, Victoria, (eds.)
IEEE Transactions on Visualization and Computer Graphics - IEEE Virtual Reality Conference Proceedings 2017.
(pp. pp. 1322-1331).
IEEE: Los Angeles, California, USA.
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Abstract
We report on the design and results of an experiment investigating factors influencing Slater’s Plausibility Illusion (Psi) in virtual environments. Slater proposed Psi and Place Illusion (PI) as orthogonal components of virtual experience which contribute to realistic response in a VE. PI corresponds to the traditional conception of presence as “being there,” so there exists a substantial body of previous research relating to PI, but very little relating to Psi. We developed this experiment to investigate the components of plausibility illusion using subjective matching techniques similar to those used in color science. Twenty-one participants each experienced a scenario with the highest level of coherence (the extent to which a scenario matches user expectations and is internally consistent), then in eight different trials chose transitions from lower-coherence to higher-coherence scenarios with the goal of matching the level of Psi they felt in the highest-coherence scenario. At each transition, participants could change one of the following coherence characteristics: the behavior of the other virtual humans in the environment, the behavior of their own body, the physical behavior of objects, or the appearance of the environment. Participants tended to choose improvements to the virtual body before any other improvements. This indicates that having an accurate and well-behaved representation of oneself in the virtual environment is the most importan
| Type: | Proceedings paper |
|---|---|
| Title: | A Psychophysical Experiment Regarding Components of the Plausibility Illusion |
| Event: | IEEE Virtual Reality Conference (VR) - 2017 |
| Location: | Los Angeles, CA |
| Dates: | 18 March 2017 - 22 March 2017 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TVCG.2017.2657158 |
| Publisher version: | https://doi.org/10.1109/TVCG.2017.2657158 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Presence, Place Illusion, Plausibility Illusion, immersion, coherence, psychophysics, user studies |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1550432 |
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