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Impact of Adaptation Currents on Synchronization of Coupled Exponential Integrate-and-Fire Neurons
Figure 10
Effects of adaptation on spiking dynamics, 
-
curves, PRCs and bifurcation currents of Traub model neurons.
A: Membrane potential 
of Traub model neurons without adaptation, 
(black), 
-mediated, 
(blue) and 
-mediated adaptation, 
(red), in response to step currents 
, B: the corresponding 
-
curves, and C: the corresponding PRCs. Solid lines in C denote the PRCs, calculated with the adjoint method and scaled by 0.2 mV. Open circles denote the results of numerical simulations of eqs. (4)–(9) with 0.2 mV perturbations at various phases. D,E: Rheobase current 
(solid black), 
(dashed grey) and 
(dashed black), as a function of 
, for 
(left) and 
(right). 
and 
converge at 
marked by the red dot. The input current indicated by the green curve separates type I and type II PRC regions (blue and yellow, respectively). F,G: Spike frequencies 
according to the input currents 
in D and E. H,I: PRCs for parametrizations as indicated in F and G (with 
corresponding to 
), scaled to the same period 
. All other model parameters are provided in the Methods section.
doi: https://doi.org/10.1371/journal.pcbi.1002478.g010