Understanding and Realizing Presence in the Presenccia Project

Slater, Mel; Frisoli, Antonio; Tecchia, Franco; Guger, Christoph; Lotto, Beau; Steed, Anthony; Pfurtscheller, Gert; Leeb, Robert; Reiner, Miriam; Sanchez-Vives, Maria V.; Verschure, Paul F. M. J.; Bernardet, Ulysses

doi:10.1109/mcg.2007.93

Cited by 27 publications

(11 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar visual capture effects have also been induced with artificial limbs such as the rubber hand illusion in which a visible fake hand is stroked simultaneously with an unseen real hand, and a person often feels and acts as if the stroking is occurring at the location of the fake hand (Botvinick & Cohen, 1998). This effect has also been demonstrated recently in virtual environments (Slater et al, 2007;Slater, Perez-Marcos, Ehrsson, & Sanchez-Vives, 2008).…”

Section: Introductionsupporting

confidence: 66%

The Effect of Viewing a Self-Avatar on Distance Judgments in an HMD-Based Virtual Environment

Mohler

Creem-Regehr

Thompson

et al. 2010

Presence: Teleoperators and Virtual Environments

180

125

View full text Add to dashboard Cite

Few HMD-based virtual environment systems display a rendering of the users own body. Subjectively, this often leads to a sense of disembodiment in the virtual world. We explore the effect of being able to see ones own body in such systems on an objective measure of the accuracy of one form of space perception. Using an action-based response measure, we found that participants who explored near space while seeing fully-articulated and tracked visual representation of themselves subsequently made more accurate judgments of absolute egocentric distance to locations ranging from 4m to 6m away from where they were standing than did participants who saw no avatar. A non-animated avatar also improved distance judgments, but by a lesser amount. Participants who viewed either animated or static avatars positioned 3m in front of their own position made subsequent distance judgments with similar accuracy to the participants who viewed the equivalent animated or static avatar positioned at their own location. We discuss the implications of these results on theories of embodied perception in virtual environments

show abstract

Section: Introductionsupporting

confidence: 66%

The Effect of Viewing a Self-Avatar on Distance Judgments in an HMD-Based Virtual Environment

Mohler

Creem-Regehr

Thompson

et al. 2010

Presence: Teleoperators and Virtual Environments

180

125

View full text Add to dashboard Cite

show abstract

“…The 2D condition presented a flat video image of the instructor whereas the 3DS realistic human avatar presented a realistic digital double of the instructor, which was reconstructed in fine detail; thus, the learner interacted with the instructor as if face‐to‐face. Highly immersive 3DS environments induce a stronger sense of presence (Slater et al, ), which enhances the involvement of the learner in the social interaction with the 3D realistic human avatar. The exact processes might be related to the activation of the mirror neuron system, to the recognition of emotions and empathy, and possibly other processes that require additional research.…”

Section: Discussionmentioning

confidence: 99%

Reduced mental load in learning a motor visual task with virtual 3D method

Dan

Reiner

2017

Computer Assisted Learning

View full text Add to dashboard Cite

Distance learning is expanding rapidly, fueled by the novel technologies for shared recorded teaching sessions on the Web. Here, we ask whether 3D stereoscopic (3DS) virtual learning environment teaching sessions are more compelling than typical two-dimensional (2D) video sessions and whether this type of teaching results in superior learning. The research goal was to compare learning in 2 virtual learning scenarios-on 2D displays and with an identical 3DS scenario. Participants watched a 2D or 3DS video of an instructor demonstrating a box origami paper-folding task. We compared participants' folding test scores and self-assessment questionnaires of the teaching scenarios and calculated their cognitive load index (CLI) based on electroencephalogram measurements during the observation periods. Results showed a highly significant difference between participants' folding test scores, CLI, and self-assessment questionnaire results in 2D compared to 3DS sessions. Our findings indicate that employing stereoscopic 3D technology over 2D displays in the design of emerging virtual and augmented reality applications in distance learning has advantages. KEYWORDS2D versus 3D immersion, cognitive load index, EEG theta and alpha power, immersive virtual learning

show abstract

“…The researchers reported that subjects will feel and act as if the stroking is really happening at the location of the fake hand. This illusion has also been demonstrated in virtual environment recently [Slater et al, 2007;Slater, PerezMarcos, Ehrsson, & Sanchez-Vives, 2008].…”

Section: Introductionmentioning

confidence: 64%

The effect of avatar model in stepping off a ledge in an immersive virtual environment

Bodenheimer

2015

Proceedings of the ACM SIGGRAPH Symposium on Applied Perception

View full text Add to dashboard Cite

Animated digital self-representations of the user in immersive virtual environments, called self-avatars, have been shown to be an aid in perceptual judgments in virtual environment and provide critical information for people deciding whether an action can be take or not. In this body of work, the size of the self-avatar is carefully calibrated to match the size of user. However, little attention has been paid to the graphical model used to represent the selfavatar. In this thesis, we further investigate the question of whether the form of the model can affect perceptual judgments in an IVE. We study this question in the context of affordance judgments, that is, properties of the virtual environment that represent possibilities for action.Our specific task concerns the judgment of stepping off a virtual ledge, a task we have studied before. In that work, we showed that the presence of a self-avatar provided important information in making the judgment of whether to step off the virtual ledge or not. In this work, we will again employ that task, but vary the underlying representation of the self-avatar across subjects to see if it affects this judgment. The forms of self-avatars vary between no self-avatar, a simple line-based skeleton avatar, or a full-body, rich polygonal, gender-matched self-avatar.Our results replicate our prior work, and show that presenting a self-avatar significantly affects people's perceptual judgment in virtual environments. However, the form of the self-avatar seem to make no difference in such tasks.

show abstract

Understanding and Realizing Presence in the Presenccia Project

Cited by 27 publications

References 5 publications

The Effect of Viewing a Self-Avatar on Distance Judgments in an HMD-Based Virtual Environment

The Effect of Viewing a Self-Avatar on Distance Judgments in an HMD-Based Virtual Environment

Reduced mental load in learning a motor visual task with virtual 3D method

The effect of avatar model in stepping off a ledge in an immersive virtual environment

Contact Info

Product

Resources

About