Table 1 Peak MNI coordinates of whole-brain activations from the SPM contrasts (p < 0.05 with FWE correction at the voxel level).

Anatomical region	Cluster size	t-value	Peak MNI
Anatomical region	Cluster size	t-value	X	Y	Z
Contrast: IG > OG
None
Contrast: OG > IG
None
Contrast: IG ∩ OG (activation)
Left middle occipital gyrus	2873	7.66	− 39	− 55	− 13
Right inferior frontal gyrus (pars triangularis)/middle frontal gyrus	505	6.95	45	11	29
Left precentral gyrus	128	5.66	− 39	2	29
Left pallidum/lentiform nucleus	19	5.54	− 18	− 10	10
Left superior parietal gyrus/precuneus	67	5.47	− 27	− 58	50
Right pallidum/lentiform nucleus	23	5.30	18	− 10	− 7
Contrast: IG ∩ OG (deactivation)
Left temporal sub-gyral	27	5.59	− 39	− 43	2
Right posterior cingulate	17	5.55	21	− 46	23
Right medial orbitofrontal gyrus/superior frontal gyrus	13	5.41	18	50	− 10
Right middle temporal gyrus	13	5.46	51	− 22	− 19
Right temporal sub-gyral	16	5.26	36	− 40	− 1
Contrast: OI > IG
Right superior temporal gyrus	92	6.23	48	− 31	5
Right supplementary motor area/superior frontal gyrus	46	6.27	9	20	62
Right precentral gyrus/middle frontal gyrus	40	6.18	39	5	44
Right insula/inferior frontal gyrus	82	6.08	39	20	− 16
Contrast: IG > OI*
Right parietal sub-gyral	4	3.64	33	− 43	26
Right precentral gyrus	2	3.53	36	− 19	68
Contrast: OI > OG
Right middle frontal gyrus	49	6.15	42	14	47
Right inferior frontal gyrus (pars triangularis)/inferior frontal gyrus	145	6.11	39	32	− 1
Right superior temporal gyrus/middle temporal gyrus	30	6.10	54	− 19	− 13
Contrast: OG > OI*
Right postcentral gyrus	18	3.67	18	− 43	59

Results of contrasts marked with asterisk (*) are reported at p < 0.001 (uncorrected).

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