Figure 4.

A: Brain regions with significant differences in activation indicated in blue (P < 0.001, unc.) during practice for the session (retest‐training) by age group (Young vs. Older) by sleep/wake condition (Nap vs. No‐Nap) interaction. B: A similar pattern of increased activation (mean voxel intensity, arbitrary units; a.u.) between groups, across regions (FCx: frontal cortex; PCx: parietal cortex; HPC: hippocampus; CB: cerebellum) in the session by group interaction. Error bars represent standard error.