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Divisive Gain Modulation with Dynamic Stimuli in Integrate-and-Fire Neurons

Figure 8

The frequency response in the fluctuation and drift dominated regimes.

(A) Fluctuation driven regime. Top Panel: the frequency response is flat up to very large frequencies for all 3 different levels of balanced background activity. In all 3 cases, there was a constant excitatory super-imposed on top of various balanced background inputs: low, medium, and high. Bottom Panel: the frequency responses for the 3 different levels of balanced background activity are scaled the same multiplicative factor ( in Figs. 2 and 3) for a large range of frequencies. (B) Drift dominated regime. Top Panel: the frequency response for 3 levels of balanced background activity with a constant excitatory super-imposed on top of various balanced background inputs: low, medium and high. Bottom Panel: the frequency responses do not scale in a multiplicative manner.

doi: https://doi.org/10.1371/journal.pcbi.1000365.g008