TABLE III.

Activation location, size, peak values, and commonality significance value for each group map^*

Group	Cluster size	Mean-Z (peak)	Cs of the peak	x, y, z (Voxel space+)	Region (BA)
1	319	1.91	0.74	48, 47, 31	LIFG (44)
	248	2.3	0.74	48, 29, 24	LMTG (21)
	10	1.42	0.76	32, 47, 41	RIFG (32)
2	1014	5.88	0.80	48, 47, 32	LIFG (44/45)
	416	5.2	0.68	49, 29, 23	LMTG (21)
	338	5.24	0.73	26, 15, 12	R cerebellum
	147	4.26	0.72	32, 46, 42	RMFG (46)
3	500	3.89	0.66	12, 50, 28	RIFG (45/48)
	61	2.51	0.71	29, 52, 40	RMTG (8)
	35	2.78	0.46	11, 27, 22	RMFG (37/20)

^*The cluster size here reflects the number of thresholded voxels within the cluster of the mean activation map. Threshold values are 1.2 for group Group 1, 3.3 for group Group 2, 1.8 for Group 3, same as the threshold used for visualization purpose in Figure 1, containing 90% of the activation energy. The largest cluster in Group 2 has a maxima in IFG but extends into left MFG.

⁺The Voxel Space we use here is the FSL MNI space, using coordinates as: x-axis as the right–left direction (moving in the left direction increases the x voxel index, range: 1–61); y-axis as the posterior–anterior direction (moving in the anterior direction increases the y voxel index, range: 1–73); z-axis as the inferior–superior direction (moving in the superior direction increases the z voxel index, range: 1–61).