Table 3.
Group results from two-way, repeated-measures ANOVA for the effects of declination rotation × inclination direction on post-stimulus alpha-power
| ANOVA 3. Effects of declination rotation and inclination direction on post-stimulus alpha-power | |||
|---|---|---|---|
| Two-way repeated measures ANOVA (N = 16) Declination rotation × inclination direction | F | p | ηp 2 |
| Main effect of declination rotation (CCW vs CW vs FIXED) | 3.77 | 0.03* | 0.24 |
| Main effect of inclination direction (Dn vs Up) | 0.89 | 0.36 | 0.06 |
| Declination rotation × inclination direction (interaction) | 6.49 | 0.004*** | 0.30 |
ANOVA 3 shows a significant interaction of declination rotation and inclination direction in declination experiments designed to test the “quantum compass” mechanism of magnetoreception. A significant alpha-ERD difference (p < 0.05) between counterclockwise down (DecDn.CCW.N) and counterclockwise up (DecUp.CCW.S) argues against this hypothesis in humans. F is the F-ratio statistic, p the probability value, and ηp 2 the partial η2 value from the ANOVA.