Neuronale Informationsverarbeitung (NI)
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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.