Kokkinara, E;
Kilteni, K;
Blom, KJ;
Slater, M;
(2016)
First Person Perspective of Seated Participants Over a Walking Virtual Body Leads to Illusory Agency Over the Walking.
Scientific Reports
, 6
, Article 28879. 10.1038/srep28879.
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Abstract
Agency, the attribution of authorship to an action of our body, requires the intention to carry out the action, and subsequently a match between its predicted and actual sensory consequences. However, illusory agency can be generated through priming of the action together with perception of bodily action, even when there has been no actual corresponding action. Here we show that participants can have the illusion of agency over the walking of a virtual body even though in reality they are seated and only allowed head movements. The experiment (n = 28) had two factors: Perspective (1PP or 3PP) and Head Sway (Sway or NoSway). Participants in 1PP saw a life-sized virtual body spatially coincident with their own from a first person perspective, or the virtual body from third person perspective (3PP). In the Sway condition the viewpoint included a walking animation, but not in NoSway. The results show strong illusions of body ownership, agency and walking, in the 1PP compared to the 3PP condition, and an enhanced level of arousal while the walking was up a virtual hill. Sway reduced the level of agency. We conclude with a discussion of the results in the light of current theories of agency.
| Type: | Article |
|---|---|
| Title: | First Person Perspective of Seated Participants Over a Walking Virtual Body Leads to Illusory Agency Over the Walking |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/srep28879 |
| Publisher version: | http://doi.org/10.1038/srep28879 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Science & Technology, Multidisciplinary Sciences, Science & Technology - Other Topics, RUBBER HAND, PATTERN GENERATORS, VICARIOUS AGENCY, OWNERSHIP, ILLUSION, SELF, LOCOMOTION, MOVEMENTS, VISION, ENVIRONMENTS |
| 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-pp.ucl.ac.uk/id/eprint/1513934 |
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