Table 2.

Peak fMRI activity for working-memory paradigm

		SPM99 stereotaxic coordinates
Region of interest	t statistic (p < 0.05)	x	y	z
Right striatum	6.4	18	4	−2
Left striatum	7.4	−18	6	−4
Right ventrolateral prefrontal cortex	6.5	34	20	−2
Left ventrolateral prefrontal cortex	6.2	−28	20	0
Right dorsolateral prefrontal cortex	6.2	34	40	18
Left dorsolateral prefrontal cortex	6.3	−38	36	22
Right occipitoparietal junction	8.8	32	−74	24
Left occipitoparietal junction	8.8	−30	−76	28

Pattern of peak activations for the contrast combining all of the retrieval and manipulation conditions against the maintenance period for each subject in a random-effects model, corrected for multiple comparisons (p<0.05).