Figure 24

A simulation of the network in Fig. 23(a). Input-2 is 22 Hz and input-1 has average frequency 70 Hz with 10% variability in the interpulse intervals (see Appendix D.1). Above the membrane potential of each of the SI cells, the two inputs that it receives are shown (red for input-1, green for input-2). Each of the SI cells behaves as in the network of Fig. 9. The RS cell fires in response to each of the three SI cells and only to them (with the exception of the transient period). The network as a whole implements the time-division multiplexing mechanism described in Fig. 22