Table 1.
Dataset | Older control | Young control |
---|---|---|
Age at 1st scan, yrs (s.d.) | 66.7 (6.4) | 20.5 (8.4) |
Gender, M/F | 11/13 | 11/15 |
Scan interval, mos (s.d.) | 13 (3) | 11 (5) |
Education, yrs (s.d.) | 17.5 (1.8) | N.A. |
Network evaluated | Salience | Multiple |
---|---|---|
Seed-based ROI approach | ||
Map-wise ICC | 0.54-0.68 | N.A. |
Voxel-wise ICC | 0.27-0.33 | 0.13-0.45#a |
ROI matrix analysis | ||
Map-wise ICC | 0.49 | 0.50b |
ROI pair-wise ICC | 0.26 | 0.22-0.23a |
ROI matrix analysis (wavelet) | ||
Map-wise ICC | 0.59 | N.A. |
ROI pair-wise ICC | 0.32 | N.A. |
Weighted clustering coefficient | ||
Map-wise ICC | 0.54 | ~0.5b; ~0.2d |
Node-wise ICC | 0.41 | ~0.2d |
Weighted clustering coefficient (wavelet) | ||
Map-wise ICC | 0.52 | N.A. |
Node-wise ICC | 0.53 | N.A. |
TC-GICA | ||
Map-wise ICC | 0.58 | N.A. |
Voxel-wise ICC | 0.31 | N.A. |
0.62+ | 0.45-0.65+c |
Note: ICC values for older controls were computed with white matter, CSF and non-brain signals as the nuisance regressors and averaged across all units (voxels, ROI pairs and nodes), unless noted otherwise.
Seeded separately at posterior cingulate cortex (PCC), supplementary motor area (SMA), and the inferior parietal sulcus (IPS) and ICC averaged across significant voxels (positive and negative)
Modal ICCs of voxels in the identified components
Mutiple networks; White matter, CSF, global signals and movement parameters removed (Shehzad et al., 2009)
Whole brain network based on ROIs defined by automated anatomical labeling (AAL) altas. White matter, CSF signals and movement parameters removed (Schwarz and McGonigle, 2011)
Components associated with sensory, motor, higher order cognitive function and the default mode network (Zuo et al., 2010).
Whole brain network based on ROIs defined by AAL, Harvard-Oxford atlas and meta-analysis. Global signal and movement parameters removed (Wang et al, 2011). Indicate that values listed are means (except where specified)