Variability in spiking pattern of leaky integrate-and-fire neuron due to excitatory and inhibitory potentials

In this work, a theoretical neuronal model incorporating the aggregate effect of distributed delay, in terms of excitatory and inhibitory potentials, is proposed. Monte Carlo simulation based study have been done for the proposed model. A comparative study for spiking activities of proposed model with leaky integrate-and-fire (LIF) model, neuronal model with weak delay and neuronal model with strong delay have been performed, which has validated and suggested the effectiveness of proposed model. The proposed model is capable of firing various kind of spiking patterns. Similar kind of spiking patterns have been noticed in experimental data, viz. thalamus and cortex of an anesthetized macaque monkey by Goriset. al. [16], and, in neocortex pyramidal neuron by Hedrick and Waters [22].