Figure 5.

Different degrees of angioscotoma representation similar to those observed experimentally (Fig. 1) are also produced in the two-dimensional cortices using the Kohonen algorithm by changing the ratio l/K_b, which controls how segregated the OD columns are at birth. For all simulations, at each iteration, a different stimulus was drawn randomly from a fixed set. The angioscotoma was introduced at K = K_b, and annealing was continued at the same rate for 10⁵ iterations after the angioscotoma introduction. This corresponds to each nondeprived retinal point being presented ∼20 times after angioscotoma introduction. Black represents afferents from one retina, and white represents afferents from the other.