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Configuration-specific facilitation phenomena explained by layer 2/3 summation pools in V1

Fulltext:


Authors:

Baran Çürüklü, Anders Lansner

Research group:

Robotics

Publication Type:

Conference/Workshop Paper

Venue:

BMC Neuroscience

Publisher:

BioMed Central Ltd

DOI:

10.1186/1471-2202-10-S1-P177

Abstract

A laminar model of the layers 4 and 2/3 of V1 is presented. The model addresses development of the horizontal connections found in these two cortical layers as well as configuration-specific facilitation phenomena [1]. It is assumed that in both these cortical layers synapse strengths are subject to change due to visual experience. In the model poorly tuned LGN input targets solely layer 4, whereas layer 2/3 receives sensory input from layer 4. Based on these assumptions the model demonstrates how correlation based networks of horizontal connections are developed simultaneously in both these layers. Rapid improvement of orientation selectivity (OS) during the first weeks after eye opening, when the eyes are subject to normal visual experience has been reported earlier in several species [2,3]. Note that this critical period coincides with the development of the horizontal connections [3].

Bibtex

@inproceedings{Curuklu2196,
author = {Baran {\c{C}}{\"u}r{\"u}kl{\"u} and Anders Lansner},
title = {Configuration-specific facilitation phenomena explained by layer 2/3 summation pools in V1},
volume = {10},
month = {September},
year = {2009},
booktitle = {BMC Neuroscience},
publisher = {BioMed Central Ltd},
url = {http://www.es.mdu.se/publications/2196-}
}