Standard deviations for central Gaussians in model RGCs (in arcminutes).

Model RGC receptive field sizes taken after [29]. Values are based on median rc parameter reported in Table 1 of the previous report. For foveal regions, values were taken from the 0-5° range for P cells and the 0-10° range for M cells. Values from the cited Table are in terms of half width of a Gaussian fit at 1/e of the Gaussian’s maximum. These values were converted to standard deviation by dividing by 2 . Standard deviations for central Gaussians in model RGCs (in arcminutes).