Figure 2.
Effects of chronic unpredictable stress (CUS) and riluzole in the sucrose preference test. (a) On day 15, CUS animals showed a significant decrease in sucrose preference when compared to home cage control (CTR) animals (t30 = 2.36, P = 0.025). (b) Sucrose preference was decreased by 35 days CUS exposure (F1,28 = 3.42, P < 0.01) and was reversed by chronic riluzole treatment (F1,28 = 5.258, P < 0.05). Error bars represent s.e.m. *P < 0.05, **P < 0.01 compared to CTR and #P < 0.05 compared to CUS, two-way analysis of the variance (ANOVA), Student–Newman–Keuls post hoc analysis.