Fig. 7.

Effects of LumiVida™ treatments on perception of particular emotions in faces with 50 % blends of those emotions: a fear, b sadness, c disgust, and d happiness. The mid-point of 5 (broken line) on the 1–9 scale represents accurate perception of 50 % of the expression present (by comparison with the other % blends). Data are expressed as mean ± SE for Day 2 ratings, adjusted for baseline (Day 1). Significant differences from mid-point rating are indicated (one-sample t tests), *p < 0.05; **p < 0.01; ***p < 0.001. Differing letters (a and b) indicate significant differences between groups