Activation timecourse of ventral visual stream object-recognition areas: high density electrical mapping of perceptual closure processes
Détails
ID Serval
serval:BIB_B1FD3DE2F690
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Activation timecourse of ventral visual stream object-recognition areas: high density electrical mapping of perceptual closure processes
Périodique
Journal of Cognitive Neuroscience
ISSN
0898-929X
Statut éditorial
Publié
Date de publication
07/2000
Peer-reviewed
Oui
Volume
12
Numéro
4
Pages
615-21
Notes
Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S. --- Old month value: Jul
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S. --- Old month value: Jul
Résumé
Object recognition is achieved even in circumstances when only partial information is available to the observer. Perceptual closure processes are essential in enabling such recognitions to occur. We presented successively less fragmented images while recording high-density event-related potentials (ERPs), which permitted us to monitor brain activity during the perceptual closure processes leading up to object recognition. We reveal a bilateral ERP component (N(cl)) that tracks these processes (onsets approximately 230 msec, maximal at approximately 290 msec). Scalp-current density mapping of the N(cl) revealed bilateral occipito-temporal scalp foci, which are consistent with generators in the human ventral visual stream, and specifically the lateral-occipital or LO complex as defined by hemodynamic studies of object recognition.
Mots-clé
Adolescent
Adult
Analysis of Variance
*Brain Mapping
Evoked Potentials/physiology
Evoked Potentials, Visual/physiology
Female
Humans
Male
Occipital Lobe/physiology
Pattern Recognition, Visual/*physiology
Perceptual Closure/*physiology
Photic Stimulation
Reaction Time/physiology
Reference Values
Temporal Lobe/physiology
Visual Pathways/physiology
Pubmed
Web of science
Création de la notice
21/01/2008 10:23
Dernière modification de la notice
20/08/2019 15:20