Trying to move your unseen static arm ...
Type de document :
Article dans une revue scientifique
PMID :
URL permanente :
Titre :
Trying to move your unseen static arm modulates visually-evoked kinesthetic illusion
Auteur(s) :
Metral, Morgane [Auteur]
Laboratoire de Psychologie et NeuroCognition [LPNC]
Blettery, Baptiste [Auteur]
Université Savoie Mont Blanc [USMB [Université de Savoie] [Université de Chambéry]]
Bresciani, Jean-Pierre [Auteur]
Luyat, Marion [Auteur]
Psychologie : Interactions, Temps, Emotions, Cognition (PSITEC) - ULR 4072 [PSITEC]
Guerraz, Michel [Auteur]
Laboratoire de Psychologie et NeuroCognition [LPNC]
Laboratoire de Psychologie et NeuroCognition [LPNC]
Blettery, Baptiste [Auteur]
Université Savoie Mont Blanc [USMB [Université de Savoie] [Université de Chambéry]]
Bresciani, Jean-Pierre [Auteur]
Luyat, Marion [Auteur]
Psychologie : Interactions, Temps, Emotions, Cognition (PSITEC) - ULR 4072 [PSITEC]
Guerraz, Michel [Auteur]
Laboratoire de Psychologie et NeuroCognition [LPNC]
Titre de la revue :
PLoS One
Numéro :
8
Pagination :
e80360
Date de publication :
2013-11-11
Discipline(s) HAL :
Sciences cognitives
Résumé en anglais : [en]
Although kinesthesia is known to largely depend on afferent inflow, recent data suggest that central signals originating from volitional control (efferent outflow) could also be involved and interact with the former to ...
Lire la suite >Although kinesthesia is known to largely depend on afferent inflow, recent data suggest that central signals originating from volitional control (efferent outflow) could also be involved and interact with the former to build up a coherent percept. Evidence derives from both clinical and experimental observations where vision, which is of primary importance in kinesthesia, was systematically precluded. The purpose of the present experiment was to assess the role of volitional effort in kinesthesia when visual information is available. Participants (n=20) produced isometric contraction (10-20% of maximal voluntary force) of their right arm while their left arm, which image was reflected in a mirror, either was passively moved into flexion/extension by a motorized manipulandum, or remained static. The contraction of the right arm was either congruent with or opposite to the passive displacements of the left arm. Results revealed that in most trials, kinesthetic illusions were visually driven, and their occurrence and intensity were modulated by whether volitional effort was congruent or not with visual signals. These results confirm the impact of volitional effort in kinesthesia and demonstrate for the first time that these signals interact with visual afferents to offer a coherent and unified percept.Lire moins >
Lire la suite >Although kinesthesia is known to largely depend on afferent inflow, recent data suggest that central signals originating from volitional control (efferent outflow) could also be involved and interact with the former to build up a coherent percept. Evidence derives from both clinical and experimental observations where vision, which is of primary importance in kinesthesia, was systematically precluded. The purpose of the present experiment was to assess the role of volitional effort in kinesthesia when visual information is available. Participants (n=20) produced isometric contraction (10-20% of maximal voluntary force) of their right arm while their left arm, which image was reflected in a mirror, either was passively moved into flexion/extension by a motorized manipulandum, or remained static. The contraction of the right arm was either congruent with or opposite to the passive displacements of the left arm. Results revealed that in most trials, kinesthetic illusions were visually driven, and their occurrence and intensity were modulated by whether volitional effort was congruent or not with visual signals. These results confirm the impact of volitional effort in kinesthesia and demonstrate for the first time that these signals interact with visual afferents to offer a coherent and unified percept.Lire moins >
Audience :
Non spécifiée
Vulgarisation :
Non
Établissement(s) :
Université de Lille
Équipe(s) de recherche :
Neuropsychologie & Audition
Date de dépôt :
2020-09-14T10:33:18Z
2021-03-08T13:57:32Z
2021-03-08T13:57:32Z
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