Table 3.

Multi-Source Interference Task (Interference-Control condition): activation local maxima within cingulate cortex (CC) and frontal cortex regions of interest (ROIs).

ROI   Visit      Region	Cluster size (voxels)	x	y	z	SPM {t}	Voxel p (FWE - corrected)
CC
Visit 1
No activation k ≥ 15	–	–	–	–	–	–
Visit 2
Right middle cingulate cortex	150	6	12	45	8.45	<0.0005
Right anterior cingulate cortex	15	12	36	15	5.18	<0.0005
Visit 1 > Visit 2
No activation k ≥ 15	–	–	–	–	–	–
Visit 2 > Visit 1
Right anterior cingulate cortex	20	3	18	24	5.41	<0.0005
Right anterior cingulate cortex	23	9	30	18	5.21	<0.0005
FRONTAL
Visit 1
Left superior frontal gyrus	65	-30	-3	69	9.51	<0.0005
Right inferior frontal gyrus (p. triangularis)	19	45	12	24	8.48	<0.0005
Visit 2
Right inferior frontal gyrus (p. opercularis)	575	42	9	27	10.75	<0.0005
Left middle frontal gyrus	217	-24	-6	51	10.08	<0.0005
Left precentral gyrus	19	-45	9	36	7.87	<0.0005
Visit 1 > Visit 2
No activation k ≥ 15	–	–	–	–	–	–
Visit 2 > Visit 1
Right middle frontal gyrus	88	48	9	54	6.94	<0.0005
Right superior frontal gyrus	25	24	12	66	6.58	<0.0005

The statistical threshold was initially set at p < 0.05 for cluster level family-wise-error (FWE), and p < 0.0005 for voxel level FWE (corrected for multiple comparisons) with a minimum cluster extent k = 15 contiguous voxels. Bolded results indicate values that survived the Monte Carlo simulation minimum cluster extent (k = 91).