highly significantp < 0.001
For average pupil diameter, the results of two-way ANOVA showed highly significant effects of the color of chairs ( F (5, 35) = 8.187, p < 0.001, η p 2 = 0.028), but without main effect of the form of chairs ( F (5, 35) = 0.809, p = 0.543 > 0.05, η p 2 = 0.003), or interaction between color and form ( F (5, 35) = 0.290, p = 0.998 > 0.05, η p 2 = 0.005).