Table 3.

Activation clusters and peak coordinates

Cluster index	Cluster size	Z	x	y	z	Location
4	9189	6.17	−30	−78	26	L lateral superior occipital (LOcc)
4		6.15	−28	−90	26	L occipital pole/lateral occipital
4		5.87	−24	−68	50	L lateral superior occipital
4		5.68	−48	−56	−16	L inferior temporal
4		5.56	−24	−78	40	L lateral superior occipital
4		5.53	−34	−92	12	L lateral superior occipital
3	8781	6.03	38	−86	18	R lateral superior occipital (ROcc)
3		5.96	24	−38	−18	R fusiform/posterior parahippocampal gyrus
3		5.86	26	−66	52	R lateral superior occipital
3		5.83	42	−80	18	R lateral superior occipital
3		5.72	38	−82	26	R lateral superior occipital
3		5.69	26	−68	46	R lateral superior occipital
2	1893	4.96	50	34	12	R inferior frontal gyrus/frontal pole (RIFG)
2		4.65	44	6	28	R precentral gyrus/inferior frontal gyrus
2		4.5	40	14	26	R inferior/middle frontal gyrus
2		4.49	44	36	10	R frontal pole/inferior frontal gyrus
2		4.4	36	16	26	R inferior/middle frontal gyrus
2		4.35	40	6	32	R precentral/middle frontal gyrus
1	1616	4.55	−40	8	26	L inferior frontal gyrus/precentral gyrus (LIFG)
1		4.12	−52	14	38	L middle/inferior frontal gyrus
1		3.74	−44	38	8	L frontal pole/inferior frontal gyrus
1		3.37	−38	30	16	L inferior/middle frontal gyrus
1		3.14	−56	32	18	L middle/inferior frontal gyrus

Note: Significant task-positive clusters and corresponding local maxima from the one-sample t-test of young and old subjects. The highest peak within each cluster was selected for subsequent ROI analyses (bolded and italicized). Additionally, cluster 3 was masked with a hippocampus anatomical mask to define an additional task-positive ROI in the right hippocampus (“RHip”). L, left; R, right.