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The Open Source Physics Project is supported by NSF DUE-0442581.

Integrate-and-Fire Neuron Model Documents

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Main Document

Integrate-and-Fire Model 

written by Colin F. C. Thomson

The Integrate-and-Fire model may be considered the oldest computational model of a neuron, and is also one of the simplest. The Integrate-and-Fire model (IF) was developed by Louis Lapicque in 1907 and takes into account only the ohmic leakage of the neuron, and as such is a single linear differential equation. We will take advantage of this simplicity in proving analytically facts about the period of firing.

The Integrate-and-Fire model was developed using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.   Double clicking the jar file will run the program if Java is installed.  You can modify this simulation if you have EJS installed by right-clicking within the map and selecting "Open Ejs Model" from the pop-up menu item.

Published October 9, 2012
Last Modified June 9, 2014

This file has previous versions.

Source Code Documents

Integrate-and-Fire Source Code 

The source code zip archive contains an EJS-XML representation of the Integrate-and-Fire model.   Unzip this archive in your EJS workspace to compile and run this model using EJS.

Last Modified November 6, 2012

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