Figure 9 - Rescue of turning behavior in cat-4 mutant males by serotonin. Control and experimental worms were scored together under otherwise identical conditions. Data are represented as in Figure 5. Analysis by ANOVA revealed statistically significant differences among the groups (p = 0.002). Pairwise comparisons show that cat-4 (*) is significantly different (p < 0.05) from wild-type and cat-4 + 5-HT, which are not different from one another.