Cerebral activation in wide field flow contrasted to a wide stationary field.

<p>Regional activations related to FW contrasted to SW. Initial threshold was <i>p</i><0.001 (uncorrected, extent threshold k = 8 voxels). The resulting single occipito-parietal cluster was constituted by distinct confluent regional activations. The latter were separated by thresholding at voxel level <i>p</i><0.05, FWE-corrected. As none of the initially identified local maxima disappeared, the segregated clusters (<i>p</i><0.05 cluster-level corrected for whole brain) are reported here. The reported co-ordinates represent maxima that are located more than 12 mm apart from the adjoining focus in each cluster. Positive x, y, z coordinates (in mm) indicate locations respectively right, anterior and superior to the middle of the anterior commissure. Abbreviations: HC = healthy controls; PD_nFOG = Parkinson patients without freezing of gait; PD_FOG = Parkinson patients with freezing of gait; excl = exclusive; post. = posterior; post. sup. = posterior superior; sc = same cluster; sup. = superior.