Seeing our own voice: an electrophysiological study of audiovisual speech integration during self perception - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2015

Seeing our own voice: an electrophysiological study of audiovisual speech integration during self perception

Résumé

Recent studies suggest that better recognition of one's actions may result from the integration of sensory inputs with our own sensory-motor knowledge. However, whether hearing our voice and seeing our articulatory gestures facilitate audiovisual speech integration is still debated.The present EEG study examined the impact of self-knowledge during the perception of auditory, visual and audiovisual syllables that were previously recorded by a participant or a speaker he/she had never met. Audiovisual interactions were estimated on eighteen participants by comparing the EEG responses to the multisensory stimuli (AV) to the combination of responses to the stimuli presented in isolation (A+V). An amplitude decrease of early P2 auditory evoked potentials was observed during AV compared to A+V. Moreover, shorter latencies of N1 auditory evoked potentials were also observed for self-related visual stimuli compared to those of an unknown speaker.In line with previous EEG studies on multimodal speech perception, our results point to the existence of early integration mechanisms of auditory and visual speech information. Crucially, they also provide evidence for a processing advantage when the perceptual situation involves our own speech productions. Viewing our own utterances leads to a temporal facilitation of the integration of auditory and visual speech signals.
Fichier principal
Vignette du fichier
IMRF-EEG-self-Final.pdf (479.6 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-01297672 , version 1 (05-04-2016)

Identifiants

  • HAL Id : hal-01297672 , version 1

Citer

Avril Treille, Coriandre Emmanuel Vilain, Sonia Kandel, Marc Sato. Seeing our own voice: an electrophysiological study of audiovisual speech integration during self perception. IMRF 2015 - 16th International Multisensory Research Forum, Jun 2015, Pise, Italy. ⟨hal-01297672⟩
247 Consultations
58 Téléchargements

Partager

Gmail Facebook X LinkedIn More