This is the readme for the models associated with the paper:

Brzosko Z, Zannone S, Schultz W, Clopath C, Paulsen O (2017)
Sequential neuromodulation of Hebbian plasticity offers mechanism for
effective reward-based navigation. Elife

To run type

on the matlab command prompt. After a minute or so it should produce
the following images (the panels displays snapshots of updates while
the simulation is running):