Improved differentiation in the PPC pyramidal neurons in the reversed go/no-go task. A–C, Heat maps (A), trial-averaged traces (B), and ROC graph (C) of responses evoked by S+ and S− under learning and proficient states during the reversed go/no-go task from a representative mouse. D, Averaged odor-response traces across all animal–odor pairs (n = 9 animal–odor pairs from 4 mice). E, Histograms and cumulative probability of auROCs in the learning state and in the proficient state during the reversed go/no-go task across all animal–odor pairs. F, G, Comparison of auROCs (F)/difference in ΔF/F (G) between the learning state and the proficient state during the reversed go/no-go task across all animal–odor pairs. F, Paired t test, n.s. (df = 8, t = 1.513); (G) paired t test, *p < 0.05 (df = 8, t = −2.686).