    The XPP code was run and set with MATLAB (using file runchange.m),
    using the MATLAB-XPP interface that can be downloaded here:
    http://www2.gsu.edu/~matrhc/XPP-Matlab.html

    There were five sets of simulations
    1 The original Prescott model: prescott
    2 Model with added T-current: prescott + T
    3 Model with added T-current and adaptation current: prescott + T+adap
    4 Model with added T-current and h-current: prescott + T+h
    5 Model with added T-current with variable gT: prescott+Tvar

    All used the same input stimulus, taken from the experiments, stim.tab