Table 4.
Results of the contrast analysis in each frequency band for reactivity (difference of log-transformed absolute power).
| Delta | Theta | Alpha | Beta | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F | p | ηp2 | F | p | ηp2 | F | p | ηp2 | F | p | ηp2 | |
| Main Effects (adj. α-level=0.025) | ||||||||||||
| L > R | 21.8 | <0.001 | 0.10 | 1.3 | 0.25 | 0.01 | ||||||
| L/R > M | 9.1 | 0.003 | 0.04 | 18.7 | <0.001 | 0.08 | ||||||
| F > P | 18.0 | <0.001 | 0.08 | 0.1 | 0.76 | 0.00 | 66.2 | <0.001 | 0.24 | 29.3 | <0.001 | 0.12 |
| F/P > C | 39.7 | <0.001 | 0.13 | 25.9 | <0.001 | 0.11 | 86.6 | <0.001 | 0.30 | 0.5 | 0.48 | 0.00 |
| Interactions (adj. α-level=0.0125) | ||||||||||||
| L > R x F > P | 0.6 | 0.43 | 0.00 | 4.5 | 0.04 | 0.02 | 8.5 | 0.004 | 0.04 | 2.2 | 0.14 | 0.01 |
| L > R x F/P > C | 0.1 | 0.76 | 0.00 | 0.1 | 0.80 | 0.00 | 1.0 | 0.33 | 0.01 | 0.1 | 0.77 | 0.00 |
| L/R > M x F > P | 11.5 | 0.001 | 0.05 | 2.83 | 0.09 | 0.00 | 30.6 | <0.001 | 0.13 | 7.9 | 0.01 | 0.04 |
| L/R > M x F/P > C | 8.9 | 0.003 | 0.04 | 8.0 | 0.01 | 0.04 | 28.3 | <0.001 | 0.12 | 5.5 | 0.02 | 0.03 |
All test statistics are with (1,206) degrees of freedom. Underlined effects are reversed in direction (i.e., the reversed effect from L > R × F > P is L < R × F > P). Changing the direction of both directional indicators within a single effect is equivalent (i.e., L > R × F > P is the same as L < R × F < P). L, left; R, right; M, midline; F, frontal; P, posterior; C, central. Significant results are printed in bold.