First person perspective of seated participants over a walking virtual body leads to illusory agency over the walking

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 a...

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Autores: Kokkinara, Elena, Kilteni, Konstantina, Blom, Kristopher J., Slater, Mel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/126542
Acceso en línea:https://hdl.handle.net/2445/126542
Access Level:acceso abierto
Palabra clave:Realitat virtual
Percepció visual
Neurociències
Virtual reality
Visual perception
Neurosciences
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spelling First person perspective of seated participants over a walking virtual body leads to illusory agency over the walkingKokkinara, ElenaKilteni, KonstantinaBlom, Kristopher J.Slater, MelRealitat virtualPercepció visualNeurociènciesVirtual realityVisual perceptionNeurosciencesAgency, 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.Nature Publishing Group2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/126542Articles publicats en revistes (Psicologia Clínica i Psicobiologia)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1038/srep28879Scientific Reports, 2016, vol. 6https://doi.org/10.1038/srep28879info:eu-repo/grantAgreement/EC/FP7/604102info:eu-repo/grantAgreement/EC/FP7/285681cc-by (c) Kokkinara, Elena et al., 2016http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1265422026-05-27T06:46:51Z
dc.title.none.fl_str_mv First person perspective of seated participants over a walking virtual body leads to illusory agency over the walking
title First person perspective of seated participants over a walking virtual body leads to illusory agency over the walking
spellingShingle First person perspective of seated participants over a walking virtual body leads to illusory agency over the walking
Kokkinara, Elena
Realitat virtual
Percepció visual
Neurociències
Virtual reality
Visual perception
Neurosciences
title_short First person perspective of seated participants over a walking virtual body leads to illusory agency over the walking
title_full First person perspective of seated participants over a walking virtual body leads to illusory agency over the walking
title_fullStr First person perspective of seated participants over a walking virtual body leads to illusory agency over the walking
title_full_unstemmed First person perspective of seated participants over a walking virtual body leads to illusory agency over the walking
title_sort First person perspective of seated participants over a walking virtual body leads to illusory agency over the walking
dc.creator.none.fl_str_mv Kokkinara, Elena
Kilteni, Konstantina
Blom, Kristopher J.
Slater, Mel
author Kokkinara, Elena
author_facet Kokkinara, Elena
Kilteni, Konstantina
Blom, Kristopher J.
Slater, Mel
author_role author
author2 Kilteni, Konstantina
Blom, Kristopher J.
Slater, Mel
author2_role author
author
author
dc.subject.none.fl_str_mv Realitat virtual
Percepció visual
Neurociències
Virtual reality
Visual perception
Neurosciences
topic Realitat virtual
Percepció visual
Neurociències
Virtual reality
Visual perception
Neurosciences
description 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.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/126542
url https://hdl.handle.net/2445/126542
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1038/srep28879
Scientific Reports, 2016, vol. 6
https://doi.org/10.1038/srep28879
info:eu-repo/grantAgreement/EC/FP7/604102
info:eu-repo/grantAgreement/EC/FP7/285681
dc.rights.none.fl_str_mv cc-by (c) Kokkinara, Elena et al., 2016
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Kokkinara, Elena et al., 2016
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv Articles publicats en revistes (Psicologia Clínica i Psicobiologia)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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