Figure 3. Weights (colour squares) and neural activity (b&w squares) to resources I–IV of the genotypes in the polymorphism.

Niche signal components (s_{j 1} and s_{j 2}, for resource j = 1≡I,2≡II,3≡III,4≡IV) propagate via weights (w _1k, w _2k) to the hidden neurons (k = 1,2,3). SG1 and SG2 code for these weights, the bias weight (b_hk), and the output weight (w _{out k}), which settings are represented by colours (bar at the bottom). The weights (row 5–8) and corresponding response (row 1–4; black: response >0.5; white: response <0.5) are given for genotypes (AA, AB, BB) and niches I–IV. For the output neuron, the fifth row represents the bias weight b_o.