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. 2014 Jul 24;9(7):e98424. doi: 10.1371/journal.pone.0098424

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© 2014 Azzopardi et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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The black and gray dashed circles represent the original and the shifted receptive field, respectively, of a center-off sub-unit that is described by tuple i in the concerned CORF model. The new polar coordinates (), with respect to the ‘+’ marker (receptive field center of the CORF model at hand), are determined by shifting the polar coordinates () along the x-axis by half of the given β value.

Inline graphic — The black and gray dashed circles represent the original and the shifted receptive field, respectively, of a center-off sub-unit that is described by tuple i in the concerned CORF model. The new polar coordinates (), with respect to the ‘+’ marker (receptive field center of the CORF model at hand), are determined by shifting the polar coordinates () along the x-axis by half of the given β value.