Figure 3.

Examples of reward and place correlates of accumbens neurons during RRPST and PLT in D2R-KO mice. (A and C) Performance of mice and neural responses on the RRPST. (a) Trail of mouse, reward locations (Left), and firing-rate map (Right). (b) Rastergrams (Left), histograms of firing (Right), and curves of averaged locomotion speed (Bottom Right). (B and D) Performance of mice and neural responses on the PLT. Other notations are similar to those described for Fig. 2. Note that prereward inhibition is absent in I-type neurons (Bb), whereas E-type neurons still displayed prereward excitation (Db).