Figure 1.
Diazepam and Δ9-THC reduce marble burying behavior. Mice were injected (i.p.) with diazepam (DZ), THC, or vehicle and tested for anxiety-like behavior in the marble burying assay. Locomotor activity was simultaneously recorded and was quantified as seconds per minute spent immobile. (A,C) Diazepam and THC dose-dependently reduced marble burying. (B,D) Both diazepam and THC also caused sedation at higher doses than required to reduce marble burying. Data are presented as the mean ± SEM (n = 8-11). * p < 0.05, ** p < 0.01 vs. vehicle.