Fig. 3.

Locomotor activity ofTac1+/+ andTac1−/− mice in the open-field apparatus.A, Total horizontal activity. B, Activity in the central part. Each value represents the mean distance traveled (±SEM) of 10 animals. **p < 0.01; ***p < 0.001 according to two-way ANOVA (genotype × illumination) followed by SNK test.