The linear information rate, I
(g;s), which represents the information per unit time available to an optimal linear decoder that estimates a rate-coded presynaptic signal, s(t), by observing a postsynaptic conductance, g(t). The linear information rate is plotted as a function of the peak frequency, f
, of the signal. When stochastic vesicle dynamics are ignored (dashed red line), I
(g;s) is independent of f
[3, 4]. When stochastic vesicle dynamics are accounted for (solid blue line), information transfer is reduced and high-frequency signals are transferred more reliably than low-frequency signals.