Effects of Synaptic Noise and Filtering on the Frequency Response of Spiking Neurons

Noise can have a significant impact on the response dynamics of a nonlinear system. For neurons, theprimary source of noise comes from background synaptic input activity. If this is approximated as whitenoise, the amplitude of the modulation of the firing rate in response to an input current oscillating atfrequency v decreases as 1pv and lags the input by 45