Table 2.

Significant differences for resting-state functional connections with bilateral M1 and S1 in older adults compared with younger adults.

		MNI coordinates
Regions	BA	x	y	z	Peak T-score	Cluster voxels
Left M1
Younger < older
Right postcentral	BA 3	23	–38	64	4.38	86
Right precentral	BA 6	20	–22	65	3.91
Left superior parietal	BA 2	–21	–47	64	4.28	42
Younger > older
Right insula	BA 48	40	–13	10	5.32	229
Right rolandic operculum	BA 48	44	–16	17	5.03
Right superior temporal	BA 48	48	–19	4	4.83
Left insula	BA 48	–39	–11	9	4.95	139
Left rolandic operculum	BA 48	–43	–17	18	4.38
Left superior temporal	BA 48	–49	–5	0	3.93
Right M1
Younger < older
Left superior parietal	BA 5	–21	–49	67	3.67	33
Younger > older
Right insula	BA 48	39	–12	10	6.28	319
Right rolandic operculum	BA 48	44	–16	17	5.47
Right superior temporal	BA 48	46	–16	3	3.97
Left insula	BA 48	–39	–13	10	5.67	302
Left rolandic operculum	BA 48	–42	–17	17	5.22
Left superior temporal	BA 48	–45	–24	7	4.23
Left S1
Younger < older
Right precentral	BA 6	22	–27	65	3.86	66
Right postcentral	BA 2	24	–42	63	3.65
Right supplementary motor area	BA 6	–2	–10	57	4.03	23
Left supplementary motor area	BA 6	2	–10	55	3.94
Left superior parietal	BA 5	–18	–52	67	3.99	39
Younger > older
Right insula	BA 48	40	–13	9	5.22	175
Right rolandic operculum	BA 48	44	–14	17	5.08
Right superior temporal	BA 48	46	–16	4	4.31
Left insula	BA 48	–39	–10	9	4.99	164
Left rolandic operculum	BA 48	–43	–19	16	4.92
Right S1
Younger < older
Right precentral	BA 6	19	–26	65	3.72	36
Younger > older
Right insula	BA 48	42	–13	8	5.57	249
Right rolandic operculum	BA 48	41	–18	19	4.51
Right superior temporal	BA 48	49	–22	6	3.81
Left insula	BA 48	–36	–11	10	4.83	253
Left rolandic operculum	BA 48	–44	–18	17	4.61
Left superior temporal	BA 48	–47	–19	6	3.61

BA, Brodmann area