Table 4.

Effects on positively skewed versus negatively skewed gambles on brain activity

Region	R	A	S	Z	# Voxels
Age
Left inferior/middle frontal gyrus	−51	24	20	−5.10	238
Right anterior cingulate	1	30	23	−4.64	47
Left inferior frontal gyrus/insula	−25	24	−6	−4.49	39
Left cingulate gyrus	−4	10	35	−4.25	32
Left central precuneus	−42	−5	38	−4.20	24
Left superior temporal gyrus	−57	−43	6	−3.74	19
Bias
Left cingulate gyrus	−4	12	32	4.90	81
Left caudate/nucleus accumbens	−10	10	−6	4.66	71
Right caudate	7	15	0	4.59	70
Left insula	−30	−19	17	4.79	52
Right insula	39	−8	14	4.25	32
Age × Bias
Right insula	39	−22	14	4.95	129
Right inferior frontal gyrus	51	24	6	4.71	46
Left cingulate gyrus	−4	15	29	5.14	46
Right inferior frontal gyrus	30	18	−15	4.79	27
Right posterior cingulate	25	−51	20	4.59	22
Right superior temporal gyrus	51	18	−15	5.28	20