Fig. 6.

Average fMRI percent signal changes for the L rACC target ROI for the Happy Memories vs Rest condition contrast (H vs R) and for the Happy Memories vs Count condition contrast (H vs C). The black straight segments are linear fits across the four nf runs (PR, R1, R2, R3). The NF at the bottom of each figure refers to group statistics (p-value from a t-test and effect size d, both relative to zero) for the individual activity levels, corresponding to the H vs C contrast, averaged across the four nf runs. A) Results for the experimental group (EG). B) Results for the control group (CG).