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- C. Piepenbrock,
H. Ritter, and K. Obermayer. Cortical Map Development Driven by
Spontaneous Retinal Activity Waves.
.
In C. Malsburg, W. von Seelen, and B. Sendhoff, editors, Artificial
Neural Networks - ICANN 96, pages 427-432, 1996.
(FTP Gzipped PostScript, 6 pages, 47 kb)
Correlation-based learning (CBL) models have been quite successful
when applied to the activity driven development of cortical orientation
selectivity (OR) or ocular dominance (OD) maps. We ask under which conditions
waves of spontaneous activity as have been observed in the developing retina
may provide the proper activity to drive the CBL process. We demonstrate that
the currently assumed statistics of spontaneous activity waves may drive OD
and OR development only, if (i) the visual pathways interact before they
reach the cortex, and (ii) if the CBL model involves nonlinear mechanisms or
constraints to couple OD and OR development. Finally, simulated cortical maps
are examined.
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