Experiment 1c: selective reward devaluation on response conflict. Correct and incorrect lever presses per minute (±SEM) for sham and retrosplenial cortex-lesioned animals to congruent stimulus compounds (A) and incongruent compounds (B). The graphs depict lever responding when tested in a context in which the devalued outcome had previously been earned (“same” reward condition, left column) or when the devalued outcome had not previously been earned in that test context (“different” reward condition, right column). Accurate performance to the congruent stimuli in both devaluation conditions was observed, but the overall rate of responding was reduced in the “same” reward condition (A). For incongruent trials (B), when tested in a context in which the devalued outcome had previously been earned (“same” reward condition), context-appropriate responding was abolished in both sham and retrosplenial cortex lesion animals. In contrast, when tested in a context in which the devalued outcome had not previously been earned (“different” reward condition [B]) both sham and retrosplenial cortex-lesioned animals responded in a context-appropriate manner.
