Fig. 3.

Examples of accumbens neurons showing correlations with reward and place during RRPST and PLT in D1R-KO mice. (A and C) Performance of mice and neural responses in RRPST. (a) Trail of mouse, reward locations (Left), and firing rate map (Right). (b) Rastergrams (Left), histograms of firing (Right Upper), and curves of averaged locomotion speed (Right Lower). (B and D) Performance of mice and neural responses in PLT. Other notations were the same as for those in Fig. 2. Note that prereward excitation is absent in E-type neuron (Db), whereas I-type neurons still display prereward inhibition (Bb).