highly significantp < 0.001
There was a highly significant main effect of Orientation (upright: M = 0.65 μV, s.d. = 0.10 μV; inverted: M = 0.13 μV, s.d. = 0.04 μV; F 1,15 = 20.60, p < 0.001), reflecting a large response reduction for the inverted faces, by a factor of 5.