Figure 1

Comparison of visceral sensitivity between MS group and NS group at different ages. (A)–(C) comparison of CRD thresholds of different AWR scores. (D)–(F) comparison of AWR scores under different CRD pressures. MS, maternal separation; NS, non-separation; CRD, colorectal dilatation; AWR, abdominal withdrawal reflex. Differences between two groups were determined by two-way repeated measures ANOVA with Sidak’s multiple comparisons test. ** P < 0.01. MS, n = 6; NS, n = 6.