that produces bursts dependent on two additional variables analog to the implementation of dynamical synapses: see Kaske&Bertschinger "Traveling wave patterns..."
A nonstandard leaky-integrate-and-fire neuron model is implemented where the membrane potential Vm of a neuron is given by
where
is the membrane time constant, Rm is the membrane resistance, Isyn(t) is the current supplied by the synapses, Iinject is a non-specific background current and Inoise is a Gaussion random variable with zero mean and a given variance noise. Vreset is modulated by u and r to produce spiking dependent on the previous spike pattern At time t=0Vm ist set toVinit . If Vm exceeds the threshold voltageVthresh it is reset to Vreset and hold there for the length Trefract of the absolute refractory period.