Table 2.

Common and specific transient activation peaks (null conjunction and contrast) for the two WM tasks, as a function of encoding and retrieval. If not otherwise stated, all regions are significant at p < .05, corrected for whole brain volume

Anatomical region	No. voxels	Left/right	x	y	z	BA area	SPM Z‐value
Item ∩ order WM—encoding
SMA	324	B	−4	2	64	6	>7.80
Inferior frontal gyrus	117	B	−30	16	12	48	6.29
	27		32	18	10		5.31
Middle frontal gyrus	26	L	−44	22	26	46	3.69*
Precentral gyrus	82	L	−54	−4	52	40	7.10
Intraparietal	21	R	44	−30	46	40	4.93
Middle temporal gyrus	26	L	−62	−32	6	21	5.32
Precuneus	120	B	−26	−48	8	37	5.85
	132		26	−46	10		5.84
Cerebellum VI	29	R	24	−64	−24		5.63
Item ∩ order WM—retrieval
SMA	550	B	−2	10	54	6	>7.80*
Middle frontal gyrus	32	B	−40	32	24	45	5.01
	40		42	30	28		4.05*
Inferior frontal gyrus	1,743	B	−30	18	12	48	>7.80
	642		32	22	8		>7.80
	316		−46	2	16	6	6.42*
Inferior parietal gyrus	6,222	B	−36	−24	56	40	>7.80
	108		50	−22	46		6.32
Intraparietal	284	L	−42	−30	44	40	>7.80*
Lingual gyrus	18	L	−12	−84	0	18	4.83
Thalamus	40	L	−16	−24	14		6.56
Cerebellum	1,057	R	22	−52	−24	VI	>7.80
Item WM > order WM
No voxel above threshold for any contrast, encoding or retrieval
Order WM > item WM encoding
No voxel above threshold
Order WM > item WM retrieval
Superior frontal gyrus	119	B	−30	8	58	8	4.06*
	60		28	10	54		5.20
Intraparietal	331	R	42	−46	50	40	4.73*

WM = working memory.

^* p < .05, small volume corrections.