Fig. 4.

Marble burying test; a ALM and PGE rats buried more marbles vs CAE rats. However, GE rats buried less marbles than ALM rats. (*p < 0.05;* < 0.01one-way ANOVA with Tukey ˀs multiple comparisons) b GE,PGE and ALM rats spent less time in exploring in plexiglas test cage.(*p < 0.05;* < 0.01one-way ANOVA with Tukey ˀs multiple comparisons) c ALM,PGE and GE rats spent more time in interacting with marbles vs CAE group, but this increasing trend is not statistically significant.(one-way ANOVA with Tukey ˀs multiple comparisons) d GE and PGE rats spent more time in self-grooming as a repetitive behavior vs CAE group.(*p < 0.05;* < 0.01one-way ANOVA with Tukey ˀs multiple comparisons) e ALM rats spent more time in digging behavior vs CAE group,and also there is a trend of increasing digging behavior in PGE rats vs CAE group,but this is not statistically significant. Error bars represent the SEM. (*p < 0.05; one-way ANOVA with Tukey ˀs multiple comparisons). Number of rats per group: CAE = 8, GE = 8, PGE = 8, ALM = 10