Table 3.
Intracranial regional hemoglobin oxygen saturation (rS02) (mean, median, and SD) values and significant differences between the left and right prefrontal cortical areas.
| Phase | Left prefrontal lobe | Right prefrontal lobe | P < 0.05 | ||
|---|---|---|---|---|---|
| 1 | Introduction followed by concentration phase (eyes open/eyes closed) | Mean | 67.17 | 67.27 | 0.223ND |
| Median | 67.20 | 67.30 | |||
| SD | 1.25 | 1.17 | |||
| 2 | Alert AS1 game fase | Mean | 67.54 | 67.43 | 0.220 |
| Median | 67.50 | 67.40 | |||
| SD | 0.44 | 0.34 | |||
| 3 | Break 1 followed by concentration phase (eyes open/eyes closed) | Mean | 67.06 | 66.68 | <0.001ND ES = 0. |
| Median | 67.00 | 66.60 | |||
| SD | 0.47 | 0.44 | |||
| 4 | Alert AS2 game fase | Mean | 66.94 | 66.69 | 0.010 ES = 0.5 |
| Median | 66.90 | 66.80 | |||
| SD | 0.38 | 0.58 | |||
| 5 | Break 2 followed by concentration phase (eyes open/eyes closed) | Mean | 66.35 | 65.90 | <0.001 ES = 0.7 |
| Median | 66.40 | 66 | |||
| SD | 0.38 | 0.43 | |||
| 6 | SELECT SEL1 game fase | Mean | 66.60 | 66.48 | 0.095ND |
| Median | 66.67 | 66.60 | |||
| SD | 0.33 | 0.38 | |||
| 7 | Break 3 followed by concentration phase (eyes open/eyes closed) | Mean | 66.18 | 65.88 | 0.005 ES = 0.5 |
| Median | 66.20 | 65.80 | |||
| SD | 0.44 | 0.57 | |||
| 8 | SELECT SEL1 game fase and break 4 | Mean | 66.14 | 65.92 | 0.002 ES = 0.5 |
| Median | 66.00 | 65.80 | |||
| SD | 0.47 | 0.46 | |||
| Total phase 1–8 | Mean | 66.75 | 66.54 | <0.001 ES = 1.1 | |
| Median | 66.79 | 66.60 | |||
| SD | 0.77 | 0.84 | |||
| rS02 decrease | rS02 decrease | ||||
| p < 0.000 | p < 0.000 |
ND, Normal distribution of the data: Data were normally distributed and analyzed with a t-test for paired samples. All non-normally distributed data were analyzed with a Wilcoxon signed-rank. ES, Cohends dz Effect size.