Representation of Dynamical Stimuli in Populations of Threshold Neurons
Figure 5
Firing rate response to a step-like current signal at time
in a population of independent threshold neurons. (A,B) Firing rate change
in response to a mean current step-like increase of amplitude
, amplitude-to-threshold ratio
. Analytical solution in Eq. 25 (solid lines) and simulation results (circles) are superimposed. (A)
for
,
and varying current correlation times
. (B)
for
,
and
. (C,D) Firing rate change
in response to an step-like increase of the current variance
. (C)
and
,
. (D)
for
,
and
. Analytical solution in Eq. 26 (solid lines) and simulation results (circles) are superimposed. Note that the evoked change of the stationary firing rate in A and C, B and D is the same.