3.1. Experiment 1
The behavioral responses during the acclimation period differed
significantly among the groups (F 15,92 = 2.88,P = 0.0010) (Table 1). However, a post hoc test revealed that the
behavioral responses in each group did not differ from those in the Sal
group. The behavioral responses during the experimental period differed
significantly among the groups (F 15,92 = 3.07,P = 0.0005) (Fig. 2). A post hoc test revealed that both the Nal
and Alo groups showed increased freezing (Nal: P = 0.0076, Alo:P < 0.0001) and decreased walking (Nal: P =
0.016, Alo: P = 0.013) and investigation (Nal: P = 0.0067,
Alo: P = 0.0005) as compared to the Sal group.