Exemplary model simulations when observation noise (R) is varied.

<p>The left two panels are for a small <i>R</i> value and the right two panels are for a large <i>R</i> value. Other model parameters remain the same in the simulations. The two top panels display the changes of the state variables as a function of trials. The two hidden states, a slow and a fast component, and their sum are plotted separately. The perturbation is applied at the 201^th trial. The two bottom panels display the corresponding movement error, i.e., the difference between the model estimate and the actual feedback, as a function of trials.