Table 3.
Critical values at which the threshold-free cluster enhancement (TFCE) statistic can be thresholded to yield a familywise error rate of 5% for fractional anisotropy (FA) and mean diffusivity (MD).
| Variable | Association | Fractional Anisotropy | Mean Diffusivity | ||
|---|---|---|---|---|---|
| Uncorrected | Corrected | Uncorrected | Corrected | ||
| COM-EF | Positive | 0.980* | 0.942* | 0.000 | 0.302 |
| Negative | 0.000 | 0.050 | 0.984* | 0.672 | |
| COM-Mem | Positive | 0.925* | 0.756 | 0.014 | 0.542 |
| Negative | 0.114 | 0.126 | 0.994* | 0.700 | |
| ISD-EF | Positive | 0.416 | 0.694 | 0.110 | 0.064 |
| Negative | 0.100 | 0.152 | 0.638 | 0.692 | |
| ISD-Mem | Positive | 0.603 | 0.352 | 0.380 | 0.728 |
| Negative | 0.495 | 0.600 | 0.180 | 0.082 | |
| ISD-BP | Positive | 0.196 | 0.320 | 0.982* | 0.946* |
| Negative | 0.823 | 0.320 | 0.038 | 0.232 | |
Values are depicted for the analyses when the cognitive scores are both corrected and uncorrected for age-related variance. *p < 0.05, one-tailed.