Figure 16.

Effect of inhibitory surround within receptive fields on the accuracy of low-dimensional spatial representations. (A) Spatial profiles of two receptive field types. These represent slices through what where actually 2D circularly symmetric receptive fields. (B) 2D plot of stress as a function of receptive field diameter, using both Gaussian and Difference of Gaussians (DOG) receptive fields. RF dispersion was 48°. (C) 3D plot of stress as a function RF diameter and RF dispersion using DOG receptive fields. Compare to Figure 5B, where we used Gaussian receptive fields. In both (B) and (C) RF spacing was 0.1° and stimulus configuration was a 16° grid.