SYNCHRONIZATION AND COMPLEX DYNAMICS IN PULSE-COUPLED CIRCUIT MODELS OF NEURONS

Synchronization of neurons may have some biological significance, but there are questions about how neurons can sometimes be synchronized and sometimes not. In this work, electronic circuit models of the Fitzhugh-Nagumo equations are used to stimulate four pulse-coupled neurons. For some coupling configurations, the circuits are only partly synchronized even though all circuits share a common drive. It is shown that this partial synchronization is a byproduct of high-dimensional (but not necessarily chaotic) dynamics.