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. Author manuscript; available in PMC: 2010 Feb 13.
Published in final edited form as: Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Sep 23;80(3 Pt 1):031914. doi: 10.1103/PhysRevE.80.031914

FIG. 1.

FIG. 1

(Color online) Example analysis of firing rate for (a) a simple and (b) a complex cell in the cat primary visual cortex probed with natural stimuli from the data set [29]. Two relevant input dimensions were found for each neuron using the maximally informative dimensions method described in [30]. Color shows the firing rate as a function of input similarity to the first (x axis) and second (y axis) relevant input dimensions. The values on the x and y axes have been normalized to have zero mean and unit variance. Blue (dashed) lines show regions with signal-to-noise ratio > 2.0. Red (solid) lines are drawn at half the maximum rate and represent estimates of the decision boundaries.