UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

First-Person Perspective Virtual Body Posture Influences Stress: A Virtual Reality Body Ownership Study

Bergström, I; Kilteni, K; Slater, M; (2016) First-Person Perspective Virtual Body Posture Influences Stress: A Virtual Reality Body Ownership Study. PLOS One , 11 (2) , Article e0148060. 10.1371/journal.pone.0148060. Green open access

[img]
Preview
Text
First-Person Perspective Virtual Body Posture Influences Stress: A Virtual Reality Body Ownership Study.pdf - ["content_typename_Published version" not defined]

Download (8MB) | Preview

Abstract

In immersive virtual reality (IVR) it is possible to replace a person's real body by a life-sized virtual body that is seen from first person perspective to visually substitute their own. Multisensory feedback from the virtual to the real body (such as the correspondence of touch and also movement) can also be present. Under these conditions participants typically experience a subjective body ownership illusion (BOI) over the virtual body, even though they know that it is not their real one. In most studies and applications the posture of the real and virtual bodies are as similar as possible. Here we were interested in whether the BOI is diminished when there are gross discrepancies between the real and virtual body postures. We also explored whether a comfortable or uncomfortable virtual body posture would induce feelings and physiological responses commensurate with the posture. We carried out an experiment with 31 participants in IVR realized with a wide field-of-view head-mounted display. All participants were comfortably seated. Sixteen of them were embodied in a virtual body designed to be in a comfortable posture, and the remainder in an uncomfortable posture. The results suggest that the uncomfortable body posture led to lesser subjective BOI than the comfortable one, but that participants in the uncomfortable posture experienced greater awareness of their autonomic physiological responses. Moreover their heart rate, heart rate variability, and the number of mistakes in a cognitive task were associated with the strength of their BOI in the uncomfortable posture: greater heart rate, lower heart rate variability and more mistakes were associated with higher levels of the BOI. These findings point in a consistent direction-that the BOI over a body that is in an uncomfortable posture can lead to subjective, physiological and cognitive effects consistent with discomfort that do not occur with the BOI over a body in a comfortable posture.

Type: Article
Title: First-Person Perspective Virtual Body Posture Influences Stress: A Virtual Reality Body Ownership Study
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1371/journal.pone.0148060
Publisher version: http://dx.doi.org/10.1371/journal.pone.0148060
Language: English
Additional information: Copyright © 2016 Bergström et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
UCL classification: UCL > Provost and Vice Provost Offices
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: http://discovery.ucl.ac.uk/id/eprint/1476734
Downloads since deposit
84Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item