Figure 6.

PE-related activation by memory region, feedback-timing condition, and age group. As previously reported (Foerde and Shohamy, 2011), younger adults exhibited relatively greater response to PEs in the NAcc with immediate feedback and in the HC with delayed feedback. In older adults, response to PEs with immediate feedback were similar to younger adults in the NAcc and HC, but with delayed feedback there was no elevation in HC responses. Younger adults are represented by solid bars and older adults by striped bars. Error bars indicate SEM.