Transient spike adding in the presence of equilibria

Saeed Farjami, Vivien Kirk, and Hinke M. Osinga


Many models of neuronal activity exhibit complex oscillations in response to an input from other neurons in a network or to an input from an injected current. We consider the effect of a single short stimulus on a simple model designed to mimic some features of neuronal dynamics. We focus on the transient response induced by the stimulus, particularly on the spike-adding behaviour of the response. Our main goal is to explain how the transient response is affected by the presence of unstable equilibria. We also investigate the dependence of the number of spikes on the amplitude and duration of the stimulus. In our analysis, we use numerical continuation methods and exploit the presence of different time scales in the model.

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Created by Hinke Osinga
Last modified: Tue Dec 22 12:09:32 NZDT 2015