Figure 4From: Dopamine D2receptors mediate two-odor discrimination and reversal learning in C57BL/6 miceD2R-/- mice perseverate in unreinforced behavior during reversal learning trials. The number of necessary trials (mean + standard error) to (A) demonstrate reversal learning (*p < 0.01), and (B) reversal errors committed (*p < 0.01) by D2R-/- and D2R+/+ mice.Back to article page