Table 1.

MNI coordinates of activation maxima for the load contrast (high > low)

Brain region	X	Y	Z	SPM {Z}	Size (mm3)
Significant activations for high > low load during maintenance
Cerebellum
Right inferior cerebellum (lobule VIIIa)	24	− 68	− 58	5.73	586
Right superior cerebellum (lobule VI)	24	− 66	− 18	4.76	597
Cerebrum
Left medial frontal gyrus (BA6)	− 2	4	64	5.31	787
Left middle frontal gyrus (BA9)	− 44	24	28	3.67	172
Left postcentral gyrus (BA3)a	− 52	− 6	46	4.39	1623
Left posterior cingulate (BA30)	− 24	− 60	12	4.39	571
Right hippocampus	36	− 36	− 6	4.14	180
Right inferior parietal lobule (BA40)	42	− 34	50	3.81	142
Significant deactivations for high > low load during maintenance
Cerebellum
Left crus II	− 20	− 80	− 40	4.39	613
Right crus I	28	− 76	− 32	3.9	257
Cerebrum
Left lingual gyrus (BA18)	− 22	− 94	− 6	5.09	422
Left middle frontal gyrus (BA6)b	− 30	24	56	5.56	4692
Left superior occipital gyrus (BA19)	− 38	− 78	34	4.3	156
Left superior temporal gyrus (BA22)	− 48	− 18	4	5.69	1960
Right inferior occipital gyrus (BA17)	26	− 98	− 4	4.26	144
Right inferior parietal lobule (BA40)	48	− 60	48	3.73	248
Right precuneus (BA31)	10	− 44	38	4.64	559
Right superior temporal gyrus (BA22)	56	− 14	2	5.75	3389

^aLocal maxima in BA44 in inferior frontal gyrus (− 52, 10, 16) and precentral gyrus (− 44, 10, 6)

^bLocal maxima in medial frontal gyrus BA10 (− 10, 56, 2) and superior frontal gyrus BA8 (− 8, 46, 50); BA Brodmann area