Table 2.

Peak Z-values and MNI-coordinates.

Brain region	BA	Peak Z-value	Peak coordinates
			x	y	z
A. Task-related activation
Anticipation condition
Task activation
Orbital frontal cortex*	13	5.98	30	22	−10
Occipital pole	18	7.41	−22	−96	4
Stimulant use > no stimulant use
Right dorsolateral putamen	-	3.49	26	−12	10
Left dorsolateral putamen	-	3.52	−24	0	10
Right precentral gyrus	8	4.32	42	4	34
Left precentral gyrus	6/4	3.87	−34	−8	42
Right supramarginal gyrus	7	4.37	40	−44	40
Familial risk < no familial risk
Occipital pole	18	3.76	−2	−94	−16
B. Task-related putamen connectivity
Stimulant use < no stimulant use
Middle frontal gyrus	8	4.04	44	12	40
Superior frontal gyrus	6	3.33	−22	4	56
Familial risk > no familial risk
Medial frontal cortex	10	3.52	2	50	−10
Frontal Pole	10	3.55	40	50	−8
Temporal pole	36	3.84	−20	4	−28
Brainstem	-	3.68	8	−24	−30
Familial risk < no familial risk
Anterior cingulate cortex	24	3.45	4	−2	38
Stimulant use X familial risk
Left precentral gyrus	4	4.38	−38	−14	48
Right precentral gyrus	6	3.64	30	−4	50
Postcentral gyrus	4/1	4.38	66	−6	30
Lateral occipital cortex	19	3.70	−18	−88	30
Lateral occipital cortex	19	3.59	26	−68	32

Regions are listed in order of cluster size from largest to smallest. (A) Summary of fMRI results for the monetary MID-condition. (B) PPI results showing the difference in functional connectivity with a seed in the bilateral putamen (MNI-coordinates: 26, −12, 10, and −24, 0, 10) during the reward anticipation

BA Broadmann Area

*This cluster extended to the paracingulate gyrus, anterior cingulate cortex (ACC), insula, pallidum, striatum, and thalamus