Multiple sets of visual cortical neurons projecting transitorily through the corpus callosum.

Details

Serval ID
serval:BIB_5291512D65AD
Type
Article: article from journal or magazin.
Collection
Publications
Title
Multiple sets of visual cortical neurons projecting transitorily through the corpus callosum.
Journal
Neuroscience Letters
Author(s)
Innocenti G.M., Clarke S.
ISSN
0304-3940 (Print)
ISSN-L
0304-3940
Publication state
Published
Issued date
1983
Volume
41
Number
1-2
Pages
27-32
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Abstract
In areas 17 and 18 of adult cats only a few neurons send bifurcating axons to more than one contralateral area or to areas in both hemispheres; most neurons seem to project to only one area. We now found that such a selective connectivity is already present at birth, i.e. several weeks before transitory callosal axons are eliminated. This is true even for those portions of cortex which will lose access to the corpus callosum: in particular different neurons project transitorily from medial area 17 to different contralateral areas. Thus cortical neurons may be induced to project to specific targets by a mechanism operating long before (and possibly independent of) the axon elimination. The latter may, however, be responsible for the final topographic organization of the connections.
Keywords
Animals, Animals, Newborn/physiology, Brain Mapping, Cats, Corpus Callosum/physiology, Neurons/physiology, Synaptic Transmission, Visual Cortex/physiology
Pubmed
Web of science
Create date
30/09/2014 15:11
Last modification date
20/08/2019 14:07
Usage data