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- C. Piepenbrock,
H. Ritter, and K. Obermayer. Linear Correlation-Based Learning Models
Require a Two-Stage Process for the Development of Orientation and Ocular
Dominance.
.
Neur. Proc. Lett., 3:1-7, 1996.
(FTP Gzipped PostScript, 9 pages, 62 kb)
In our contribution we demonstrate, that orientation (OR) and
ocular dominance (OD) cannot develop simultaneously in linear
correlation-based learning (CBL) models, because OR and OD occupy separate
domains in parameter space. We then analyse the conditions under which waves
of spontaneous activity - as have been observed in the developing retina -
may give rise at least to OR bf or OD. We find that in linear CBL models
there must be subcortical convergence of ON / OFF as well as left eye / right
eye pathways. We present a biologically plausible scenario in which the
subcortical connectivity patterns resemble a competitive neural network and
argue that OR and OD can robustly emerge, if a two-stage developmental
process is assumed.
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