Table 1.

Regions of significant activation resulting from mean group results for the cooperation and competition tasks

Region	Voxel coordinates			z Score
	x	y	z
Cooperation versus independent
R superior frontal gyrus	30	2	66	4.00
L superior frontal gyrus	− 28	−2	56	3.88
R superior parietal lobe*	32	−66	56	5.61
L superior parietal lobe*	− 24	−66	46	5.13
R inferior parietal cortex	46	−34	42	3.96
L inferior parietal cortex	− 42	−36	42	4.20
R anterior insula	38	20	2	4.45
L medial cerebellum*	− 4	−80	− 22	5.47
Competition versus independent
L superior parietal lobe	− 16	−66	64	4.69
R superior parietal lobe	22	−74	58	4.51
R inferior parietal cortex	50	−36	56	4.26
L superior frontal gyrus	− 28	4	56	3.87
R superior frontal gyrus	26	4	52	3.95
L medial prefrontal cortex	− 8	36	40	3.87
R medial prefrontal cortex	10	30	36	4.45
R middle frontal gyrus	40	52	24	4.20
L anterior insula	− 32	18	4	4.22
R anterior insula	42	24	− 12	4.21

P < 0.001 uncorrected; k > 20. Brain regions that were found to be involved in both cooperation and competition are highlighted in bold.

^*P < 0.05, corrected.