Open field locomotor activity and active avoidance learning are similar in wild-type, D1-Tmt, and D2-GFP mouse lines. A, B, C. Example traces of locomotor activity recorded in a novel cage for 10 minutes in each mouse line. D, E, F. Summary of locomotor activity in each session (n=10 wild-type mice, n=10 D1-Tmt mice, and n=12 D2-GFP mice). D. Total distance travelled. E. Total distance travelled. F. Time spent in the peripheral sector. G, H. Active avoidance behavioral training (n=15 wild-type, n=10 D1-Tmt, and n=12 D2-GFP mouse lines). G. Number of conditioned responses per 60-trial session on each of 5 consecutive training days. H. Mean delay time between the onset of the light cue and the mouse leaving the chamber on each training day. In all panels, wild-type is shown with grey symbols, D1-Tmt with red symbols, and D2-GFP with green symbols.