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A two-state neuronal model with alternating exponential excitation

Facultad de Economía, Universidad del Rosario, Calle 12c, No.4-69, Bogotá, D. C. Colombia

Special Issues: Advances in Stochastic processes and Applications

We develop a stochastic neural model based on point excitatory inputs. The nerve cell depolarisation is determined by a two-state point process corresponding the two states of the cell. The model presumes state-dependent excitatory stimuli amplitudes and decay rates of membrane potential. The state switches at each stimulus time. We analyse the neural firing time distribution and the mean firing time. The limit of the firing time at a definitive scaling condition is also obtained. The results are based on an analysis of the first crossing time of the depolarisation process through the firing threshold. The Laplace transform technique is widely used.
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