Table 2.

Results of a group (i.e. second level) whole brain search for Movement × DBS on>off interaction

Cluster-wise			Peak-wise			MNI coordinates, mm
PFWE	Voxels	Punc	T	Z	Punc	x	y	z
0.00180	245	9.4 × 10−5	8.27	4.44	4.4 × 10−6	6	−60	−18
Cluster B in Fig. 4			6.46	3.97	3.6 × 10−5	4	−70	−30
			6.36	3.94	4.1 × 10−5	−2	−60	−22
0.00010	369	5.1 × 10−6	7.79	4.33	7.4 × 10−6	34	−22	60
Cluster A in Fig. 4			6.06	3.84	6.1 × 10−5	42	−14	52
			5.73	3.73	9.5 × 10−5	30	−22	70

Clusters surviving cluster-wise significance (corrected using the family wise error correction for multiple comparisons = P_FWE) of P < 0.05 were considered significant. Two clusters were found to be significant, one 245 voxel cluster in the cerebellum, and one 369 voxel cluster in the precentral gyrus. The three peak voxels of each cluster are reported. P_unc = uncorrected P-values. A cerebellar atlas normalized to MNI space using FLIRT (Diedrichsen et al., 2009) revealed that the cerebellar cluster encompassed the left crus V, as well as the vermis and right-sided crus V and VI.