Trying to move your unseen static arm ...
Document type :
Article dans une revue scientifique
PMID :
Permalink :
Title :
Trying to move your unseen static arm modulates visually-evoked kinesthetic illusion
Author(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]
Journal title :
PLoS One
Volume number :
8
Pages :
e80360
Publication date :
2013-11-11
HAL domain(s) :
Sciences cognitives
English abstract : [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 ...
Show more >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.Show less >
Show more >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.Show less >
Audience :
Non spécifiée
Popular science :
Non
Administrative institution(s) :
Université de Lille
Research team(s) :
Neuropsychologie & Audition
Submission date :
2020-09-14T10:33:18Z
2021-03-08T13:57:32Z
2021-03-08T13:57:32Z
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