Table 2.

Peaks of clusters of activation in all 20 subjects, for the main contrasts of our task

Area	BA	MNI			Z‐score	Cluster size
		x	y	Z
MI>VI (P(unc) < 0.005)
L cerebellum		−21	−42	−39	3.89	87
L mid cingulate gyrus		−9	−15	36	3.60	21
R mid frontal gyrus	9	33	18	36	2.95	39
R precuneus	7	12	−75	36	3.53	36
R inf parietal lobule	40	57	−48	45	3.26	20
L cerebellum		−33	−45	−51	3.25	22
R cerebellum		9	−51	−3	3.20	20
MI > C (P(unc) < 0.001)
L pre/postcentral gyrus	9/2	−60	9	27	5.19	712
R sup medial frontal gyrus	32	3	24	42	5.19	514
L suppl. motor area		0	−6	69	4.49
R inf frontal operculum		60	12	24	5.16	878
R insula		42	24	−3	5.00
L supramarginal gyrus	40	−60	−21	15	5.06	161
R mid frontal gyrus	10	39	51	3	4.92	93
R postcentral gyrus		48	−27	42	4.43	277
R inf parietal lobule	40	51	−42	51	4.28
L insula		−36	−3	9	4.10	22
R pallidum		12	9	−3	3.96	23
L inf orbito‐frontal gyrus		−39	18	−9	3.95	49
R cerebellum		6	−57	−9	3.85	81
R inf frontal gyrus		42	33	24	3.84	44
L cerebellum		−33	−57	−36	3.69	32
(MID + VID) > (MIE + VIE) (P(unc) < 0.001)
R middle occipital gyrus	18	24	−105	0	5.93	333
R inferior occipital gyrus		33	−90	−9	4.81
R superior temporal gyrus	41	54	−12	−6	5.29	1088
L inferior occipital gyrus		−21	−99	−15	4.97	332
L middle occipital gyrus	18	−24	−105	−3	4.63
R paracentral lobule	4	21	−39	48	4.55	624
R postcentral gyrus	3	12	−27	78	4.31
R inferior frontal gyrus		42	36	−15	4.43	58
L precentral gyrus	4	−30	−30	69	4.32	206
L postcentral gyrus	3	−45	−30	63	4.19
L superior temporal gyrus		−42	−27	6	4.25	606
L hippocampus		−24	−36	−3	3.32	32
MID > MIE (P(unc) < 0.001)
R mid occipital gyrus	18	24	−105	0	5.27	214
R sup temporal gyrus	41	51	−21	6	4.57	379
L inf occipital gyrus		−21	−102	−12	4.35	180
L sup temporal gyrus		−57	−15	6	3.58	81
L postcentral gyrus		−45	−30	63	3.94	142
L inf parietal gyrus	2	−54	−21	45	3.46
R postcentral gyrus		15	−30	78	3.90	157
R precentral gyrus	6	30	−21	72	3.84
L insula		−39	−9	3	3.55	93
L sup temporal gyrus		−45	−27	3	3.80	57
R hippocampus		30	−18	−12	3.71	40
R putamen		27	3	9	3.39	22
MID > MIE, exclusively masked by VID > VIE (P(unc) < 0.001)
L postcentral gyrus	4	−51	−30	51	3.46	25
R precentral gyrus	4	21	−18	75	3.88	64

MI = motor imagery, C = control, VI = visual imagery, MID = motor imagery difficult, MIE = motor imagery easy.