Figure 2.
Discrimination index (DI) for novel object recognition in adult rats exposed to prenatal restraint stress.
DI results were calculated by subtracting familiar object-exploration time from the novel object-exploration time and dividing this value by the total exploration time (see methods). The left and right sides of the figure plot DI by group in male and female rats, respectively. All values are mean ± SEM (Fisher’s least significant difference post-hoc test). Sample sizes in CON, early-PRS, and late-PRS groups are 11 male/12 female, 9 male/12 female, 11 male/14 female. PRS: prenatal restraint stress; CON: Control group; early-PRS: exposed to PRS during gestation days 8–14; late-PRS: exposed to PRS during gestation days 15–21.