Gravity as a Strong Prior: Implications for Perception and Action

In the future, humans are likely to be exposed to environments with altered gravity conditions, be it only visually (Virtual and Augmented Reality), or visually and bodily (space travel). As visually and bodily perceived gravity as well as an interiorized representation of earth gravity are involved...

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Detalhes bibliográficos
Autores: Jörges, Björn, López-Moliner, Joan
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/120959
Acesso em linha:https://hdl.handle.net/2445/120959
Access Level:acceso abierto
Palavra-chave:Gravetat
Realitat virtual
Neurociència cognitiva
Gravity
Virtual reality
Cognitive neuroscience
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spelling Gravity as a Strong Prior: Implications for Perception and ActionJörges, BjörnLópez-Moliner, JoanGravetatRealitat virtualNeurociència cognitivaGravityVirtual realityCognitive neuroscienceIn the future, humans are likely to be exposed to environments with altered gravity conditions, be it only visually (Virtual and Augmented Reality), or visually and bodily (space travel). As visually and bodily perceived gravity as well as an interiorized representation of earth gravity are involved in a series of tasks, such as catching, grasping, body orientation estimation and spatial inferences, humans will need to adapt to these new gravity conditions. Performance under earth gravity discrepant conditions has been shown to be relatively poor, and few studies conducted in gravity adaptation are rather discouraging. Especially in VR on earth, conflicts between bodily and visual gravity cues seem to make a full adaptation to visually perceived earth-discrepant gravities nearly impossible, and even in space, when visual and bodily cues are congruent, adaptation is extremely slow. We invoke a Bayesian framework for gravity related perceptual processes, in which earth gravity holds the status of a so called "strong prior". As other strong priors, the gravity prior has developed through years and years of experience in an earth gravity environment. For this reason, the reliability of this representation is extremely high and overrules any sensory information to its contrary. While also other factors such as the multisensory nature of gravity perception need to be taken into account, we present the strong prior account as a unifying explanation for empirical results in gravity perception and adaptation to earth-discrepant gravities.Frontiers Media2018201820172018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion16 p.application/pdfhttps://hdl.handle.net/2445/120959Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3389/fnhum.2017.00203Frontiers in Human Neuroscience, 2017, vol. 11, num. 203https://doi.org/10.3389/fnhum.2017.00203cc-by (c) Jörges, Björn et al., 2017http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1209592026-05-29T05:05:01Z
dc.title.none.fl_str_mv Gravity as a Strong Prior: Implications for Perception and Action
title Gravity as a Strong Prior: Implications for Perception and Action
spellingShingle Gravity as a Strong Prior: Implications for Perception and Action
Jörges, Björn
Gravetat
Realitat virtual
Neurociència cognitiva
Gravity
Virtual reality
Cognitive neuroscience
title_short Gravity as a Strong Prior: Implications for Perception and Action
title_full Gravity as a Strong Prior: Implications for Perception and Action
title_fullStr Gravity as a Strong Prior: Implications for Perception and Action
title_full_unstemmed Gravity as a Strong Prior: Implications for Perception and Action
title_sort Gravity as a Strong Prior: Implications for Perception and Action
dc.creator.none.fl_str_mv Jörges, Björn
López-Moliner, Joan
author Jörges, Björn
author_facet Jörges, Björn
López-Moliner, Joan
author_role author
author2 López-Moliner, Joan
author2_role author
dc.subject.none.fl_str_mv Gravetat
Realitat virtual
Neurociència cognitiva
Gravity
Virtual reality
Cognitive neuroscience
topic Gravetat
Realitat virtual
Neurociència cognitiva
Gravity
Virtual reality
Cognitive neuroscience
description In the future, humans are likely to be exposed to environments with altered gravity conditions, be it only visually (Virtual and Augmented Reality), or visually and bodily (space travel). As visually and bodily perceived gravity as well as an interiorized representation of earth gravity are involved in a series of tasks, such as catching, grasping, body orientation estimation and spatial inferences, humans will need to adapt to these new gravity conditions. Performance under earth gravity discrepant conditions has been shown to be relatively poor, and few studies conducted in gravity adaptation are rather discouraging. Especially in VR on earth, conflicts between bodily and visual gravity cues seem to make a full adaptation to visually perceived earth-discrepant gravities nearly impossible, and even in space, when visual and bodily cues are congruent, adaptation is extremely slow. We invoke a Bayesian framework for gravity related perceptual processes, in which earth gravity holds the status of a so called "strong prior". As other strong priors, the gravity prior has developed through years and years of experience in an earth gravity environment. For this reason, the reliability of this representation is extremely high and overrules any sensory information to its contrary. While also other factors such as the multisensory nature of gravity perception need to be taken into account, we present the strong prior account as a unifying explanation for empirical results in gravity perception and adaptation to earth-discrepant gravities.
publishDate 2017
dc.date.none.fl_str_mv 2017
2018
2018
2018
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/2445/120959
url https://hdl.handle.net/2445/120959
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/10.3389/fnhum.2017.00203
Frontiers in Human Neuroscience, 2017, vol. 11, num. 203
https://doi.org/10.3389/fnhum.2017.00203
dc.rights.none.fl_str_mv cc-by (c) Jörges, Björn et al., 2017
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Jörges, Björn et al., 2017
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 16 p.
application/pdf
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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