Figure 3

Barbering behavior and direct social interaction test. Percent of whisker size in mice at 8–9 weeks (a), at 20–22 weeks (b) of age. Illustrative examples used for scoring direct social interactions such as sniffing other body parts (c), anogenital sniffing (d), active contact (e), passive contact (f), rearings (g), digging (h) and self-grooming (i). Graph represents total number of bouts (j–o), time spent (p–u) and bout duration (v–z’) during each parameter of social interaction. Data represent mean ± SEM, *p < 0.05, **p < 0.01, ***p < 0.001, Mann-Whitney U test (Wilcoxon rank sum test).