Table 2.
The relative power comparisons between prestimulus period (100 milliseconds) and poststimulus period (500 milliseconds) in the averaging-trials. The statistics are averaged over the total number of channels (namely, divided by 89 and 80 for subjects 1 and 2, resp.) and the relative time period. The values are unitless, reflecting the ratio among the normalized energy of the time-frequency map.
| Subject 1 | Subject 1 | Subject 2 | Subject 2 | |
|---|---|---|---|---|
| (counting) | (reading) | (counting) | (reading) | |
| Ave. prestimulus total power | 0.0667 | 0.0796 | 0.0748 | 0.0969 |
| Ave. prestimulus θ power | 0.0160 | 0.0265 | 0.0175 | 0.0333 |
| Ave. prestimulus α power | 0.0048 | 0.0105 | 0.0112 | 0.0102 |
| Ave. prestimulus β power | 0.0047 | 0.0078 | 0.0136 | 0.0087 |
| Ave. prestimulus γ power | 0.0021 | 0.0019 | 0.0026 | 0.0025 |
|
| ||||
| Ave. poststimulus total power | 0.1867 | 0.1841 | 0.1850 | 0.1806 |
| Ave. poststimulus θ power | 0.0486 | 0.0617 | 0.0539 | 0.0502 |
| Ave. poststimulus α power | 0.0074 | 0.0124 | 0.0154 | 0.0160 |
| Ave. poststimulus β power | 0.0051 | 0.0073 | 0.0134 | 0.0104 |
| Ave. poststimulus γ power | 0.0024 | 0.0024 | 0.0033 | 0.0023 |