Fig. 5.

Bottom. a, An OD map developed when C^OD dominates: C^OD was set to a broad Gaussian, and the other correlation functions were all set to zero, as shown in Figure 3b, dashed curves (r⁺ = 0; d = 1). Bright and dark regions correspond to dominance by the right and left eyes, respectively. b, Color code used to represent strength of synaptic weights in all RF images. Strengths of ON- and OFF-center connections are represented by intensities of green and red, respectively. Minimum brightness (black) corresponds to strength zero; maximum brightness of red or green corresponds to maximum allowed synaptic strength 8. Yellow results from mixture of ON and OFF connections. c, d, Left- and right-eye RFs, respectively, of the 8 × 8 subset of cortical cells outlined in a. According to the arbor function, A(x⃗,α⃗), adjacent cortical cells receive input from adjacent, partially overlapping circular regions of LGN cells with diameter 13. Each circle in c and d shows synaptic strengths of these connections, S^EC(x⃗,α⃗), for one cortical cell.