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- L. Schwabe and
K. Obermayer. Modelling the Adaptive Visual System: A Survey of
Principled Approaches.
.
Neur. Netw., 16:1353-1371, 2003.
(FTP PDF, 733 kb)
Modeling the visual system can be done at multiple levels of
description ranging from computer simulations of detailed biophysical models
to firing rate and so-called black-box models. Re-introducing David Marr s
analysis levels for the visual system, we motivate the use of more abstract
models in order to answer the question of what the visual system is
computing. The approaches we selected to review in this article concentrate
on modeling the changes of sensory representations. The considered
time-scales, range from the developmental time-scale of receptive field
formation to fast transient neuronal dynamics during a single stimulus
presentation. Common to all approaches is their focus on providing functional
interpretations, instead of only explanations in terms of mechanisms.
Although the concrete approaches can be distinguished along different lines,
a common theme is emerging which may qualify as a paradigm for providing
functional interpretations for changes of receptive field properties, i.e.
the dynamic adjustment of sensory representations to varying external or
internal conditions.
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