Figure 3.

Complex relationship between final synaptic weights and values of U. (A) Change in both w and U over the course of training for one simulation. The origin of each arrow marks the initial value of w (initially all weak) and U; the arrowhead marks the values of w and U for each synapse after training. Arrow colors reflect each of the five output units (each trained to recognize a different pattern). (B) Final values of w and U for all synapses across all 20 experiments. (C) Initial (blue) and final (red) distribution of U values across all 20 experiments.