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The Role of Constraints in the Development of Receptive Field Structure of Simple Cells using BCM Learning

Published on December 2011 by R. P. Maheshwari, A. R. Garg
International Conference on Electronics, Information and Communication Engineering
Foundation of Computer Science USA
ICEICE - Number 4
December 2011
Authors: R. P. Maheshwari, A. R. Garg
9ed97c4f-22b1-4c8b-8ef0-973af0a24086

R. P. Maheshwari, A. R. Garg . The Role of Constraints in the Development of Receptive Field Structure of Simple Cells using BCM Learning. International Conference on Electronics, Information and Communication Engineering. ICEICE, 4 (December 2011), 8-12.

@article{
author = { R. P. Maheshwari, A. R. Garg },
title = { The Role of Constraints in the Development of Receptive Field Structure of Simple Cells using BCM Learning },
journal = { International Conference on Electronics, Information and Communication Engineering },
issue_date = { December 2011 },
volume = { ICEICE },
number = { 4 },
month = { December },
year = { 2011 },
issn = 0975-8887,
pages = { 8-12 },
numpages = 5,
url = { /specialissues/iceice/number4/4273-iceice027/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Special Issue Article
%1 International Conference on Electronics, Information and Communication Engineering
%A R. P. Maheshwari
%A A. R. Garg
%T The Role of Constraints in the Development of Receptive Field Structure of Simple Cells using BCM Learning
%J International Conference on Electronics, Information and Communication Engineering
%@ 0975-8887
%V ICEICE
%N 4
%P 8-12
%D 2011
%I International Journal of Computer Applications
Abstract

Experimentally studies have shown that visual cortical neurons apply BCM (Binenstock Cooper and Munro) learning rule for modifications in synaptic strength. BCM rule uses adaptive threshold and in this both long term potentiation (LTP) and long term depression (LTD) is automatically taken care of. This overcomes the major disadvantage of Hebbian learning in which there is a mechanism only for LTP and no mechanism for LTD. Based on the above-mentioned experimental findings we apply BCM learning rule for the development of orientation selectivity by simple cells. We find that BCM learning rule is sufficient for segregation of ON and OFF regions in developed receptive field (RF) structure of simple cells. Starting from unsegregated ON - OFF regions we obtain elongated segregated ON and OFF regions in the RF structure very similar to actual RF structure of simple cells. The orientation selectivity thus developed is also very similar to what is found in actual simple cells.

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Index Terms

Computer Science
Information Sciences

Keywords

Simple cells orientation maps LGN spontaneous activity visual cortex BCM Neuron BCM learning