Figure 8. The distribution of the synaptic efficacies, before and after learning, for the experiments presented in Fig. 7 .

(A) Before learning. (B)–(E) After 400 learning epochs. (B), (D) E-learning. (C), (E) I-learning. (B), (C) No jitter. (D), (E) A gaussian jitter with an amplitude of 5 ms is applied to the inputs.