Table 2.

Age differences in regions with low (δ) and high (β) discount rates (older > younger).

Region	R	A	S	Z	Voxels
δ COMPONENT
L middle frontal gyrus	−27	57	20	4.197	120
L middle frontal gyrus	−31	31	42	4.110	109
L ventral striatum	−19	7	−8	3.503	19
β COMPONENT
None

Positive Z-scores indicate larger effects in older adults than younger adults.