Table 1.

Significantly active cluster identified by the PPI analysis of Experiment 1.

Location	Extent (mm3)	Z-value	MNI coordinates (x, y, z)
PPI effect: Related > Unrelated
L. Precentral gyrus	1620	4.11	−51	−9	45
R. Precentral gyrus	3402	3.88	54	−6	27
		3.24	63	−6	15
L. Precentral gyrus	2430	3.18	−54	−12	9
		3.08	−57	−3	18
Parametric modulator: size of behavioural effect
L. Inferior frontal gyrus	4158	4.56	−27	24	−9
		3.73	−21	57	3
R. Precentral gyrus	2133	3.31	45	0	36
		3.23	54	0	30
R. Precentral gyrus	1809	3.30	21	−21	60
		3.28	12	−12	69
R. Superior parietal lobule	1890	3.22	24	−45	57
		3.19	9	−51	51
R. Supramarginal gyrus	1863	3.11	54	−30	42
		3.10	60	−24	33