Fixed-effects ANOVA (type III Wald chi-square tests) results for logistic mixed interaction effects in the (A) theta, (B) alpha, (C) beta, and (D) gamma frequency bands
| Fixed-effects ANOVA results for interaction models | ||||
|---|---|---|---|---|
| Predictors | Response | |||
| Chisq | DF | Pr (>Chisq) | p (adjusted) | |
| (A) Theta model | ||||
| (Intercept) | 2.1002 | 1 | 0.1473 | 0.2695 |
| Theta power | 4.2466 | 1 | 0.0393 | 0.0968 |
| Exponent | 22.3972 | 1 | <0.0001 | <0.0001*** |
| Sensor regions | 2.1016 | 5 | 0.8349 | 0.8618 |
| Theta power × exponent | 0.3536 | 1 | 0.5521 | 0.6795 |
| Theta power × sensor regions | 2.3918 | 5 | 0.7927 | 0.8455 |
| Exponent × sensor regions | 5.4656 | 5 | 0.3617 | 0.5512 |
| Theta power × exponent × sensor regions | 18.8219 | 5 | 0.0021 | 0.0066** |
| (B) Alpha model | ||||
| (Intercept) | 1.9742 | 1 | 0.160 | 0.2695 |
| Alpha power | 25.9706 | 1 | <0.0001 | <0.0001*** |
| Exponent | 15.3560 | 1 | <0.0001 | 0.0005*** |
| Sensor regions | 5.6547 | 5 | 0.3413 | 0.5461 |
| Alpha power × exponent | 0.3849 | 1 | 0.5350 | 0.6795 |
| Alpha power × sensor regions | 19.9376 | 5 | 0.0013 | 0.0046** |
| Exponent × sensor regions | 5.0297 | 5 | 0.4122 | 0.5736 |
| Alpha power × exponent × sensor regions | 9.9510 | 5 | 0.077 | 0.1752 |
| (C) Beta model | ||||
| (Intercept) | 2.1394 | 1 | 0.1436 | 0.2695 |
| Beta power | 12.9303 | 1 | 0.0003 | 0.0015** |
| Exponent | 26.6636 | 1 | <0.0001 | <0.0001*** |
| Sensor regions | 1.5859 | 5 | 0.9029 | 0.9030 |
| Beta power × exponent | 9.2046 | 1 | 0.0024 | 0.0070** |
| Beta power × sensor regions | 2.8561 | 5 | 0.7221 | 0.8253 |
| Exponent × sensor regions | 5.2032 | 5 | 0.3916 | 0.5696 |
| Beta power × exponent × sensor regions | 3.5235 | 5 | 0.6198 | 0.7346 |
| (D) Gamma model | ||||
| (Intercept) | 1.9802 | 1 | 0.1594 | 0.2695 |
| Gamma power | 0.4862 | 1 | 0.4856 | 0.6475 |
| Exponent | 18.3772 | 1 | <0.0001 | 0.0001*** |
| Sensor regions | 17.0688 | 5 | 0.0044 | 0.0116* |
| Gamma power × exponent | 0.0775 | 1 | 0.7807 | 0.8455 |
| Gamma power × sensor regions | 34.9677 | 5 | <0.0001 | <0.0001*** |
| Exponent × sensor regions | 8.8578 | 5 | 0.1149 | 0.2451 |
| Gamma power × exponent × sensor regions | 21.5860 | 5 | 0.00063 | 0.0025** |
Each model included mean periodic power and aperiodic exponent as continuous predictors. Significant predictor interactions are highlighted in bold. p values for all fixed effects were calculated using White-corrected covariance matrices (White, 1980). p values were adjusted for multiple-comparison corrections using Benjamini–Hochberg method. Significance levels are denoted by asterisks: *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001, and ****p ≤ 0.0001.