Table 2. Brain regions with significant contributions to the Parkinson's disease-related cognitive pattern derived from the Groningen data (PDCP_GR).

Brain regiona	Coordinatesb			Zmaxc
	x	y	z
Network-related decreases (negative voxel weights)
Thalamus (mediodorsal nucleus)	0	−16	2	4.35
Caudate nucleus	−10	8	6	3.32
Supplementary motor area (rostral, BA 6)	2	14	50	4.11
Superior parietal association cortex, BA 5	0	−38	54	3.77
Inferior parietal cortex, BA 7, 40	46	−54	60	3.54
Posterior cingulate cortex, BA 29	0	−52	6	3.64
BA 23	−2	−24	28	3.19
Network-related increases (positive voxel weights)
Cerebellum, lobule VI, Crus I	28	−52	−38	2.49
Anterior cingulate, BA 32, right	20	42	−2	2.59
BA 32, left	−18	38	16	2.55

Abbreviation: BA, Brodmann area.

^aAll brain regions are significant at Z>2.44 (P<0.01) and stable on bootstrap resampling (P<0.01).

^bMontreal Neurological Institute standard space.

^cMaximum voxel weights in Z-scores.