Conscious visual perception without V1.

Details

Serval ID
serval:BIB_9B0FB3E8D61C
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Title
Conscious visual perception without V1.
Journal
Brain
Author(s)
Barbur J.L., Watson J.D., Frackowiak R.S., Zeki S.
ISSN
0006-8950 (Print)
ISSN-L
0006-8950
Publication state
Published
Issued date
1993
Volume
116 ( Pt 6)
Pages
1293-1302
Language
english
Notes
Publication types: Case Reports ; Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Abstract
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.
Keywords
Adult, Brain Mapping, Humans, Male, Tomography, Emission-Computed, Visual Cortex/physiology, Visual Cortex/radionuclide imaging, Visual Perception
Pubmed
Web of science
Create date
22/09/2011 17:20
Last modification date
20/08/2019 15:02
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