Figure 3.

Experiment 1. A, Mean lever presses per minute (±1 SEM) across sessions of instrumental training averaged across the two instrumental actions for each of the lesion groups. B, Mean lever presses per minute in the 10 min extinction test (±1 SE of the difference of the means) conducted after selective devaluation of one of the instrumental outcomes. Devaluation was achieved using a specific-satiety procedure. Data are presented separately for the action that, in training, had delivered the now devalued outcome (Dev) and for the other action (Non) and for each of the lesioned groups.