Fig. 9.

Experiment 3. Rate of performance of the lever-press and chain-pull actions in the reacquisition tests conducted after the extinction test. Rats were shifted between high and low levels of deprivation with the effect of these shifts assessed on the relative performance of the devalued (Dev) and valued (Val) actions, as designated in the extinction test. The average rate of performance of each action was averaged across the two sessions conducted in each deprivation state and plotted separately for group sham (left) and group GC (right).