Table II.
Differences in cortical thickness among younger, older high‐performing, and older low‐performing adults in WCST‐relevant regions (see Fig. 2 and Table I)
| ROI | Cortical thickness | P‐values | |||
|---|---|---|---|---|---|
| Younger n = 73 | Older high n = 20 | Older low n = 21 | Younger vs. older High | Older low vs. older High | |
| Left SPG | 2.2 ± 0.2 | 2.2 ± 0.2 | 1.9 ± 0.3 | 0.856 | <0.001 |
| Right MFG | 2.5 ± 0.3 | 2.4 ± 0.3 | 2.2 ± 0.3 | 0.195 | 0.027 |
| Right PCG | 2.3 ± 0.3 | 2.3 ± 0.3 | 2.0 ± 0.3 | 0.580 | 0.002 |
| Right SPG | 2.3 ± 0.3 | 2.3 ± 0.2 | 2.0 ± 0.2 | 0.532 | <0.001 |
| Left MFG | 2.7 ± 0.3 | 2.7 ± 0.3 | 2.4 ± 0.4 | 0.661 | 0.020 |
| Right pre‐CG | 2.6 ± 0.4 | 2.7 ± 0.4 | 2.4 ± 0.4 | 0.734 | 0.015 |
| Right IFG | 3.0 ± 0.3 | 2.9 ± 0.3 | 2.5 ± 0.3 | 0.271 | 0.001 |
| Left PCG | 2.1 ± 0.3 | 2.1 ± 0.2 | 1.9 ± 0.3 | 0.307 | 0.028 |