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Right IMM and right and left PPN, standardized relative amount of C- and M-cognin and C- and M-P38, plotted against preference score. (A–C), C-cognin; (D–F), M-cognin; (G–I), C-P38; (J–L), M-P38. Left-hand column right IMM, middle and right-hand columns left and right PPN, respectively. Conventions otherwise as for Figure 4.
