Table 2.
Summary of statistics for performance comparison using ground truth. GLM SS: Conventional GLM with SS regression. GLM tCCA: proposed extension with tCCA. CORR: Correlation, RMSE: Root Mean Square Error, F1: F-Score, ST: Single Trial, AT: Across Trials. Blue: statistically significant improvement offered by the GLM tCCA method.
| 20% HRF | 50% HRF | 100% HRF | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| GLM SS | GLM tCCA | t-test p = |
GLM SS | GLM tCCA | t-test p = |
GLM SS | GLM tCCA | t-test p = |
|||
| CORR | HbO | ST | .20 ± .18 | .29 ± .20 | 5e-15 | .46 ± .20 | .59 ± .18 | 4e-31 | .71 ± .16 | .81 ± .12 | 3e-36 |
| AT | .49 ± .36 | .51 ± .32 | 0.21 | .80 ± .22 | .83 ± 0.15 | 0.07 | .93 ± .10 | .95 ± .06 | 0.14 | ||
| HbR | ST | .20 ± .19 | .25 ± .22 | 1e-7 | .43 ± .23 | .50 ± .24 | 7e-18 | .64 ± .22 | .70 ± .21 | 2e-18 | |
| AT | .45 ± .36 | .43 ± .35 | 0.28 | .73 ± .27 | .73 ± .24 | 0.6 | .88 ± .15 | .88 ± .14 | 0.34 | ||
| RMSE | ST | 26.6 ± 1.59 | 17.2 ± 9.2 | 5e-43 | 26.6 ± 1.6 | 17.3 ± 9.2 | 5e-42 | 26.8 ± 15.9 | 17.8 ± 8.6 | 1e-39 | |
| x1e-7 | AT | 1.5 ± .97 | 1.3 ± .85 | 3e-4 | 1.4 ± .10 | 1.3 ± .85 | 5e-3 | 1.5 ± 1.0 | 1.3 ± .80 | 0.13 | |
| ST | 11.6 ± .85 | 8.5 ± 6.3 | 8e-32 | 11.6 ± .85 | 8.5 ± 6.3 | 3e-31 | 11.6 ± 8.5 | 9.0 ± 6.3 | 2e-29 | ||
| x1e-7 | AT | .7 ± .6 | .65 ± .49 | 0.60 | .66 ± .60 | .65 ± .49 | .68 | .67 ± .59 | .68 ± .48 | 0.55 | |
| F1 | HbO | .12 ± .18 | .39 ± .29 | 2e-5 | .52 ± .30 | .77 ± .22 | 6e-5 | .88 ± .13 | .90 ± .10 | 0.71 | |
| HbR | .17 ± .21 | .36 ± .24 | 3e-4 | .48 ± .30 | .66 ± .23 | 4e-3 | .82 ± .16 | .85 ± .11 | 0.29 | ||