A novel method using EEG to characterize ...
Type de document :
Autre communication scientifique (congrès sans actes - poster - séminaire...): Communication dans un congrès avec actes
Titre :
A novel method using EEG to characterize the cortical processes involved in active and passive touch
Auteur(s) :
Moungou, Athanasia [Auteur]
Institute of Neuroscience [Bruxelles]
Vezzoli, Eric [Auteur]
Méthodes et outils pour l'Interaction à gestes [MINT2]
Lombart, Celine [Auteur]
Institute of Neuroscience [Bruxelles]
Semail, Betty [Auteur]
Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
Méthodes et outils pour l'Interaction à gestes [MINT2]
Thonnard, Jean-Luis [Auteur]
Institute of Neuroscience [Bruxelles]
Mouraux, André [Auteur]
Institute of Neuroscience [Bruxelles]
Institute of Neuroscience [Bruxelles]
Vezzoli, Eric [Auteur]
Méthodes et outils pour l'Interaction à gestes [MINT2]
Lombart, Celine [Auteur]
Institute of Neuroscience [Bruxelles]
Semail, Betty [Auteur]
Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
Méthodes et outils pour l'Interaction à gestes [MINT2]
Thonnard, Jean-Luis [Auteur]
Institute of Neuroscience [Bruxelles]
Mouraux, André [Auteur]
Institute of Neuroscience [Bruxelles]
Titre de la manifestation scientifique :
IEEE - Haptic Symposium 2016
Ville :
Philadelphia
Pays :
Etats-Unis d'Amérique
Date de début de la manifestation scientifique :
2016-04-08
Mot(s)-clé(s) en anglais :
Haptic
Tactile Stimulator
Neuroscience
Tactile Stimulator
Neuroscience
Discipline(s) HAL :
Informatique [cs]/Interface homme-machine [cs.HC]
Sciences cognitives/Neurosciences
Sciences cognitives/Neurosciences
Résumé en anglais : [en]
We present a novel method to compare brain responses to identical tactile stimuli in active and passive touch. Using electroencephalography (EEG) to record steady-state evoked brain potentials (SS-EPs), our goal was to ...
Lire la suite >We present a novel method to compare brain responses to identical tactile stimuli in active and passive touch. Using electroencephalography (EEG) to record steady-state evoked brain potentials (SS-EPs), our goal was to characterize the cortical activity related to the tactile exploration of a textured surface. For this purpose, we used a novel tactile display, which is able to produce tactile texture experiences using ultrasonic stationary waves to transiently modulate tangential friction between the finger and the display. Because the change in friction depends on the amplitude of the ultrasonic vibrations, modulation of ultrasonic vibration amplitude was used to periodically modulate friction at a frequency of 11 Hz, producing a tactile percept resembling that of a square-wave grating. After recording the exact motion of the fingertip and normal force used for each trial while one participant freely explored the surface (active touch condition), the same motion and normal force was reproduced by a high-precision robotic device with force feedback (passive touch condition). Frequency analysis of the recorded EEG signals showed that, for both active and passive touch conditions, the interactions between the fingertip and the plate elicited a robust SS-EP at 11 Hz, corresponding to the frequency of friction modulation, maximal over the parietal region contralateral to the stimulated finger. Our results suggest that the cortical activity related to active and passive touch can be characterized in humans by combining the recording of SS-EPs with an ultrasonic device generating a periodic tactile experience whose frequency is independent of finger movements.Lire moins >
Lire la suite >We present a novel method to compare brain responses to identical tactile stimuli in active and passive touch. Using electroencephalography (EEG) to record steady-state evoked brain potentials (SS-EPs), our goal was to characterize the cortical activity related to the tactile exploration of a textured surface. For this purpose, we used a novel tactile display, which is able to produce tactile texture experiences using ultrasonic stationary waves to transiently modulate tangential friction between the finger and the display. Because the change in friction depends on the amplitude of the ultrasonic vibrations, modulation of ultrasonic vibration amplitude was used to periodically modulate friction at a frequency of 11 Hz, producing a tactile percept resembling that of a square-wave grating. After recording the exact motion of the fingertip and normal force used for each trial while one participant freely explored the surface (active touch condition), the same motion and normal force was reproduced by a high-precision robotic device with force feedback (passive touch condition). Frequency analysis of the recorded EEG signals showed that, for both active and passive touch conditions, the interactions between the fingertip and the plate elicited a robust SS-EP at 11 Hz, corresponding to the frequency of friction modulation, maximal over the parietal region contralateral to the stimulated finger. Our results suggest that the cortical activity related to active and passive touch can be characterized in humans by combining the recording of SS-EPs with an ultrasonic device generating a periodic tactile experience whose frequency is independent of finger movements.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Collections :
Source :
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