Effects caused due to External noise current on Leaky Integrate and Fire model .

We assess both numerically and theoretically how external noise current affect the behavior of Leaky Integrate and Fire model. Integrate and fire model works better in asynchronous inputs environment in case of signal to noise ratio of efferent spike trains. External noise and sub threshold stimulus are subject to all the neurons. Response of the models is totally different to correlated inputs. When the membrane potential reaches a certain threshold voltage, a spike is generated Simple and powerful spiking neuron model is integrate and fire model. It is majorly used in spike generation and sub threshold operation analysis. This research paper is concerned with the computational technique available to describe the Leaky integrate and fire neuron model which results from MATLAB simulation. Sub threshold stimulus and external noise is the subject to all the neurons. An effect called “noise delayed decay “(NDD) where nerves and latency of first spike can be increased by external noise.