Fig. 5.

Finite Impulse Response (FIR) event related time courses for insula bilaterally and right orbitofrontal cortex. Healthy controls demonstrated higher maximal signal change and broader area under the curve compared to PD patients. The time courses represent percent signal change of the beta weight. Healthy controls are plotted in blue, PD patients are plotted in red. Coffee is plotted with a continuous line. Vanillin is plotted with a dashed line.