highly significantp < .001
The difference between invisible and visible faces was confirmed by the two-way repeated measured ANOVA analysis with image set and face visibility as factors: there was a highly significant main effect of face visibility: F (1, 9) = 118.425, p < .001 but non-significant main effect of image set [ F (2, 18) = 3, p = .075] and non-significant interaction between image set and face visibility [ F (2, 18) < 1].