Table 1.
Summary of the effects of age on gray and white matter microstructural indices. *Controlled for intracranial volume, **5% False Discovery Rate Benjamini-Hochberg adjusted p-values. ISOSF = isotropic signal fraction, MPF = macromolecular proton fraction, ODI = orientation dispersion index, PHC = parahippocampal cingulum.
| MRI index | F(2,152)-value* | Benjamini-Hochberg corrected p-value** | Effect size ηp2 | ||
|---|---|---|---|---|---|
| Fornix | MPF | 11.9 | 0.0002 | 0.14 | |
| k f | 10.0 | 0.0008 | 0.12 | ||
| R1 | 12.4 | 0.00035 | 0.14 | ||
| ISOSF | 8.9 | 0.001 | 0.11 | ||
| ODI | 5.0 | 0.03 | 0.06 | ||
| Left PHC | R2 | 7.5 | 0.005 | 0.09 | |
| Right PHC | R1 | 4.7 | 0.03 | 0.06 | |
| Left hippocampus | k f | 6.7 | 0.008 | 0.08 | |
| R1 | 5.0 | 0.025 | 0.06 | ||
| ISOSF | 12.2 | 0.0002 | 0.14 | ||
| ODI | 9.8 | 0.0007 | 0.12 | ||
| Right hippocampus | ISOSF | 7.5 | 0.004 | 0.09 | |