States of Enhanced Activity in a Network of Pulse Coupled Oscillators with Dynamic Coupling

We investigate states of enhanced activity in a biological neuronal network composed of pulse-coupled oscillators. The synaptic couplings between the neurons are dynamic, modeling spike time dependent plasticity. The network exhibits statistical characteristics which recently have been identified in an analysis of epileptic seizures [Osorio et al., Phys. Rev. E 82, 021919(2010)] based on analogies to the onset of earth quakes.