Table 3.
Age effects for PFC subregions in the LTM task
| ROI/ measure | Model |
Linear |
Quadratic |
|||||
|---|---|---|---|---|---|---|---|---|
| F | p | t | radj2 | p | t | radj2 | p | |
| BA10 | ||||||||
| Mean univariate SM | 5.24 | 0.00660 | 1.33 | — | 0.180 | 2.36 | — | 0.0189 |
| MVB spread (SD) | 8.28 | 0.000433 | −3.75 | 0.0911 | 0.0003249 | −1.86 | — | 0.0623 |
| PFC boost | — | — | −1.44 | — | −0.321 | — | ||
| IFG | ||||||||
| Mean univariate SM | 5.39 | 0.00572 | 2.48 | 0.204 | 0.0152 | 2.72 | 0.227 | 0.00824 |
| MVB spread (SD) | 3.30 | 0.0405 | −2.50 | — | 0.0127 | −0.653 | — | 0.514 |
| PFC boost | — | — | 0.00665 | — | −0.210 | — | ||
| MFG | ||||||||
| Mean univariate SM | 1.34 | 0.266 | 1.56 | — | 0.119 | 1.38 | — | 0.169 |
| MVB spread (SD) | 4.54 | 0.0126 | −2.86 | 0.0487 | 0.00466 | −1.10 | — | 0.271 |
| PFC boost | — | — | −1.45 | — | −0.132 | — | ||
| SFG | ||||||||
| Mean univariate SM | 1.72 | 0.184 | 1.33 | — | 0.181 | 1.34 | — | 0.179 |
| MVB spread (SD) | 4.39 | 0.0145 | −2.83 | 0.0474 | 0.00533 | −1.09 | — | 0.275 |
| PFC boost | — | — | −1.68 | — | 1.03 | — | ||
The table lists mean univariate SM effects, the spread (SD) of multivariate Bayesian (MVB) voxel weights predicting SM, and results of the between-region tests of “boost” to model evidence for PFC plus PVC models compared with PVC-only. See text for details. Alpha = 0.0125. SM, Subsequent memory. n = 119.