A nonstandart leaky-integrate-and-fire (I&F) neuron.
that produces bursts dependent on two additional variables analog to the implementation of dynamical synapses: see Kaske&Bertschinger "Traveling wave patterns..."
Model
A nonstandard leaky-integrate-and-fire neuron model is implemented where the membrane potential of a neuron is given by
where is the membrane time constant, is the membrane resistance, is the current supplied by the synapses, is a non-specific background current and 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 ist set to . If exceeds the threshold voltage it is reset to and hold there for the length of the absolute refractory period.
Implementation
The exponential Euler method is used for numerical integration.