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- C. Weber, H. Ritter, J. Cowan,
and K. Obermayer. A Model for Intrinsic and Activity Dependent Mechanisms
Underlying the Regeneration of the Retinotectal Map in Goldfish.
.
In Artificial Neural Networks - ICANN 95, volume 2, pages
491-496, 1995.
(FTP Gzipped PostScript, 7 pages, 304 kb)
We have developed a mathematical framework to study the interplay
of processes thought to be involved in the development of the retinotectal
projection. Our model consists of two input layers which correspond to the
retinae of both eyes, and one output layer which corresponds to either the
right or the left half of the tectum. The connections between eyes and tectum
are described by effective synaptic weights and their development is governed
by four interacting processes: Fiber-tectum interaction, intrinsic within-eye
fiber-fiber interaction, intrinsic between-eye fiber-fiber interaction and
activity based within-eye fiber-fiber interaction. We are able to reproduce
all reported experiments with the same set of model parameters, as long as
the outcome does not depend on debris of old retinal fibers.
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