Perception of Affordance during Short-Term ...
Type de document :
Article dans une revue scientifique
PMID :
URL permanente :
Titre :
Perception of Affordance during Short-Term Exposure to Weightlessness in Parabolic Flight
Auteur(s) :
Bourrelly, Aurore [Auteur]
Psychologie : Interactions, Temps, Emotions, Cognition (PSITEC) - ULR 4072 [PSITEC]
McIntyre, Joseph [Auteur]
Centre de neurophysique, physiologie, pathologie [UMR 8119]
Morio, Cédric [Auteur]
Institut des Sciences du Mouvement Etienne Jules Marey [ISM]
Despretz, Pascal [Auteur]
Laboratoire de Neurosciences Fonctionnelles et Pathologies [LNFP]
Luyat, Marion [Auteur]
Psychologie : Interactions, Temps, Emotions, Cognition (PSITEC) - ULR 4072 [PSITEC]
Psychologie : Interactions, Temps, Émotions, Cognition (PSITEC) - ULR 4072
Psychologie : Interactions, Temps, Emotions, Cognition (PSITEC) - ULR 4072 [PSITEC]
McIntyre, Joseph [Auteur]
Centre de neurophysique, physiologie, pathologie [UMR 8119]
Morio, Cédric [Auteur]
Institut des Sciences du Mouvement Etienne Jules Marey [ISM]
Despretz, Pascal [Auteur]
Laboratoire de Neurosciences Fonctionnelles et Pathologies [LNFP]
Luyat, Marion [Auteur]
Psychologie : Interactions, Temps, Emotions, Cognition (PSITEC) - ULR 4072 [PSITEC]
Psychologie : Interactions, Temps, Émotions, Cognition (PSITEC) - ULR 4072
Titre de la revue :
PLoS One
Numéro :
11
Date de publication :
2016-04-20
Discipline(s) HAL :
Sciences cognitives
Résumé en anglais : [en]
We investigated the role of the visual eye-height (VEH) in the perception of affordance during short-term exposure to weightlessness. Sixteen participants were tested during parabolic flight (0g) and on the ground (1g). ...
Lire la suite >We investigated the role of the visual eye-height (VEH) in the perception of affordance during short-term exposure to weightlessness. Sixteen participants were tested during parabolic flight (0g) and on the ground (1g). Participants looked at a laptop showing a room in which a doorway-like aperture was presented. They were asked to adjust the opening of the virtual doorway until it was perceived to be just wide enough to pass through (i.e., the critical aperture). We manipulated VEH by raising the level of the floor in the visual room by 25 cm. The results showed effects of VEH and of gravity on the perceived critical aperture. When VEH was reduced (i.e., when the floor was raised), the critical aperture diminished, suggesting that widths relative to the body were perceived to be larger. The critical aperture was also lower in 0g, for a given VEH, suggesting that participants perceived apertures to be wider or themselves to be smaller in weightlessness, as compared to normal gravity. However, weightlessness also had an effect on the subjective level of the eyes projected into the visual scene. Thus, setting the critical aperture as a fixed percentage of the subjective visual eye-height remains a viable hypothesis to explain how human observers judge visual scenes in terms of potential for action or "affordances".Lire moins >
Lire la suite >We investigated the role of the visual eye-height (VEH) in the perception of affordance during short-term exposure to weightlessness. Sixteen participants were tested during parabolic flight (0g) and on the ground (1g). Participants looked at a laptop showing a room in which a doorway-like aperture was presented. They were asked to adjust the opening of the virtual doorway until it was perceived to be just wide enough to pass through (i.e., the critical aperture). We manipulated VEH by raising the level of the floor in the visual room by 25 cm. The results showed effects of VEH and of gravity on the perceived critical aperture. When VEH was reduced (i.e., when the floor was raised), the critical aperture diminished, suggesting that widths relative to the body were perceived to be larger. The critical aperture was also lower in 0g, for a given VEH, suggesting that participants perceived apertures to be wider or themselves to be smaller in weightlessness, as compared to normal gravity. However, weightlessness also had an effect on the subjective level of the eyes projected into the visual scene. Thus, setting the critical aperture as a fixed percentage of the subjective visual eye-height remains a viable hypothesis to explain how human observers judge visual scenes in terms of potential for action or "affordances".Lire moins >
Langue :
Anglais
Audience :
Non spécifiée
Vulgarisation :
Non
Établissement(s) :
Université de Lille
Équipe(s) de recherche :
Neuropsychologie & Audition
Date de dépôt :
2020-09-14T10:32:19Z
2020-12-07T13:22:11Z
2020-12-07T13:22:11Z
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