Table 2.

Brain areas in which activity correlates with levels of cooperation (p < 0.001 uncorrected, extent k > 25).

Location	Left hemisphere					Right hemisphere
	x	y	z	T score	Extent k	x	y	z	T score	Extent k
POSITIVE CORRELATION WITH COOPERATION
Parietal operculum	−45	−13	16	4.10	26
Cuneus (bilaterally)						9	−88	34	4.43	126
Anterior cingulate cortex	−6	47	−2	3.64	39
Hippocampus	−30	−28	−11	4.63	32
NEGATIVE CORRELATION WITH COOPERATION
Posterior intraparietal sulcus	−27	−64	55	3.72	43	24	−61	52	4.56	52
Dorsomedial prefrontal cortex						9	44	49	4.66	86
Inferior frontal gyrus						42	14	19	5.06	245
Superior temporal gyrus						60	−43	7	4.46	229a
Inferior temporal gyrus	−42	−70	−8	4.71	286b	48	−64	−8	4.84	229a
Cerebellum	−30	−82	−17	4.45	286b

^a,bSub-maxima of the same cluster. Italics indicate clusters not explored using small volume correction in the absence of a priori hypotheses. Other areas were significantly correlated with levels of cooperation.