Conscious visual perception without V1.

Détails

ID Serval
serval:BIB_9B0FB3E8D61C
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Etude de cas (case report): rapporte une observation et la commente brièvement.
Collection
Publications
Titre
Conscious visual perception without V1.
Périodique
Brain
Auteur(s)
Barbur J.L., Watson J.D., Frackowiak R.S., Zeki S.
ISSN
0006-8950 (Print)
ISSN-L
0006-8950
Statut éditorial
Publié
Date de publication
1993
Volume
116 ( Pt 6)
Pages
1293-1302
Langue
anglais
Notes
Publication types: Case Reports ; Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
We used the technique of PET to determine whether visual signals reach visual area V5, specialized for visual motion, when a human patient, blinded by a lesion in area V1, discriminates the direction of motion of visual stimuli and shows, through his verbal reports, that he is consciously aware of both the nature of the visual stimulus and its direction of motion. The results showed that area V5 was active without a parallel activation of area V1, implying that the visual input can reach V5 without passing first through V1 and that such an input is sufficient for both the discrimination and the conscious awareness of the visual stimulus.
Mots-clé
Adult, Brain Mapping, Humans, Male, Tomography, Emission-Computed, Visual Cortex/physiology, Visual Cortex/radionuclide imaging, Visual Perception
Pubmed
Web of science
Création de la notice
22/09/2011 18:20
Dernière modification de la notice
03/03/2018 19:53
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