borderline significantp = 0.07
Under the happy faces, the main effect of age was significant, F (1, 54) = 4.30, p < 0.05, η 2 = 0.07; the main effect of sequence type was significant, F (3, 162) = 226.19, p < 0.001, η 2 = 0.81; the interaction between the two was borderline significant, F (3, 162) = 2.36, p = 0.07, η 2 = 0.04, and the simple effect analysis revealed that the reaction time was significantly longer in the older group than in the younger group on both happy-happy and happy-neutral sequences, and the differences between the other two sequences were not significant.