marginally significantp = 0.077
The main effect of brain regions was also significant, F (2,124) = 132.134, p < 0.001, η p 2 = 0.681, as P2 amplitudes were greater in central ( M = 8.786 μV, SE = 0.391) than centro-parietal area ( M = 7.072 μV, SE = 0.392).The three-way interaction was marginally significant, F (2,124) = 2.639, p = 0.077, η p 2 = 0.041.