Abstract
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 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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Piepenbrock, C., Ritter, H. & Obermayer, K. Linear correlation-based learning models require a two-stage process for the development of orientation and ocular dominance. Neural Process Lett 3, 31–37 (1996). https://doi.org/10.1007/BF00417787
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DOI: https://doi.org/10.1007/BF00417787