Firing rate response to a -current perturbation.

<p>A Black: response to an additionally injected current causing a voltage deflection of at , gray: . B Magnification of A. Due to binning of the histogram with bin size , the immediate response contributes to the time bin in the case of a positive perturbation only. Black crosses: analytical peak responses (7) for positive and negative perturbations. C Medium gray curve: instantaneous response (7) as a function of for finite weights . Black dots: direct simulation. Light gray curve: diffusion limit of (7). Medium gray dots: direct simulation of diffusion limit with temporal resolution . D Gray curve: integral response for finite weights (15). Black dots: direct simulation. Gray dots: direct simulation for Gaussian white noise background input. Simulated data averaged over perturbation events. Other parameters as in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1000929#pcbi-1000929-g002" target="_blank">Figure 2A</a>.