The leaky integrate-and-fire with noise: a useful tool to investigate SR

The behaviour of a relaxation-like neural model, driven by noise and underthreshold sinusoidal signal, is analysed by computer simulation. The histograms of interspike intervals and the cycle histograms (CHs) are computed as well as the power spectral densities (PSDs) of the point process generated. The system is shown to exhibit bona fide stochastic resonance (SR).