This is the (top-level) README for the model code associated with the
publications:

Gurney, K., Prescott, T. J. & Redgrave, P. (2001). A computational
model of action selection in the basal ganglia I: A new functional
anatomy. Biological Cybernetics, 85, 401-410.

Gurney, K., Prescott, T. J. & Redgrave, P. (2001). A computational
model of action selection in the basal ganglia II: Analysis and
simulation of behaviour. Biological Cybernetics, 85, 411-423.

Humphries, M.D. (2003). High level modeling of dopamine mechanisms in
striatal neurons. Technical Report ABRG 3. Dept. Psychology University
of Sheffield, UK.

You can run this model with simulink (see README_simulink.txt) or with
matlab only (see README_matlab.txt).