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. Author manuscript; available in PMC: 2006 Jun 8.
Published in final edited form as: Neuron. 2005 Aug 18;47(4):607–620. doi: 10.1016/j.neuron.2005.07.016

Figure 5.

Figure 5

Change in contrast response functions with different r2 cutoffs. Contrast response functions for V1, V2 and V3 are shown in A, B and C respectively. Curves are constructed with voxels exceeding a cutoff r2 value the same as Figure 4 (most saturated colors and thickest lines) and with cutoff values 0.11, 0.1, 0.09, 0.08, 0.05 and 0 (in descending order of color saturation and line thickness). Note that the curve with cutoff of 0 is one that is equivalent to an ROI based approach because it includes all voxels in the ROI.