Table 6.

Significant clusters of brain activation associated with scan site

Cluster #	Anatomical label(s)	Hemisphere	N voxels	MNI coordinatesa
				X	Y	Z
	Working memory contrast
1	Superior parietal gyrus, angular gyrusb	Left	739	−20	−70	56
2	Superior parietal gyrusb	Right	1907	16	−76	54
3	Premotor cortex, supplementary motor cortexb	Right	725	32	2	60
4	Premotor cortex, supplementary motor cortexb	Left	601	−28	−10	52
5	Inferior frontal gyrus and anterior frontal gyrus	Left	829	−50	38	4
6	Anterior prefrontal gyrus	Right	1429	8	58	10

Note: Activation for the working memory contrast that survived the cluster level significance of p < 0.05, family wise error (FWE) corrected, initial threshold p < 0.001. N voxels: number of voxels involved in the significant cluster (total brain volume consisted of 153138 voxels)

^aBrain coordinates defined by the Montreal Neurological Institute (MNI), based on which the location of (de)activated clusters of voxels can be identified. MNI coordinates represent the location of the maximum intensity voxel

^bBrain areas indicating deactivation in children scanned in Amsterdam compared with children scanned in Groningen