increases in brain activity under the presentation of artificial odors.

Brain activation for the contrast artificial odors > no odor for the pooled odors peach and artificial sweat for patients with PD (N = 13), controls (N = 13) and for patients > controls/controls > patients. Whole brain analyses are corrected at cluster level and uncorrected at a height threshold of pAll activations are significant at p[25] for the anterior cingulate cortex [−2 16 −4].# indicates that this activation maximum is part of the same cluster.For each region of activation, the coordinates of the maximally activated voxels within the activation cluster are given in standard stereotactic MNI space.