Figure 20.

(A) Effect of random placement of receptive field centers, rather than on a hexagonal grid. Two random distributions were examined: uniform and Gaussian. (A) Example uniform distribution of RF centers. (B) Example Gaussian distribution of RF centers. (C) Stress as a function of RF diameter, for regular hexagonal RF array as well as the two random distributions. The curves for the hexagonal array arrangement and the uniform distribution are almost identical and appear superimposed.