HHsim is a graphical simulation of a section of excitable neuronal
membrane using the Hodgkin-Huxley equations. It provides full access to
the Hodgkin-Huxley parameters, membrane parameters, stimulus parameters,
and ion concentrations.

In contrast with NEURON or GENESIS, which are vastly more sophisticated
research tools, HHsim is simple educational software designed
specifically for graduate or undergraduate neurophysiology courses. The
user interface can be mastered in a couple of minutes and provides many
ways for the student to experiment.
HHsim is free software distributed under the GNU General Public
License. The official HHsim web site is at
http://www.cs.cmu.edu/~dst/HHsim. The online documentation, including
sample screen shots, is available on this web site, and also included
with the program when you download it. The web site also offers sample
exercises that use the simulator.
Compiled, stand-alone versions of HHSim are available for Windows XP,
Linux, and Mac OS X (both Intel and PowerPC architectures). HHsim is
written in Matlab, so if you have Matlab on your machine, you can just
download the source code and run that.

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