Figure 5.

Time frequency results. Main effects of (A) task (retrieval vs encoding). Participants have a higher deactivation in the retrieval task, across high alpha and low beta. B, Novelty (old vs new). Participants have a higher deactivation for old stimuli. C, Age (young vs elderly). Young participants have stronger beta power at ∼1–1.4 s than the elderly. Raw power values are plotted in bar plots. Single topoplot across the frequency peak of the cluster. Time-frequency samples not significant on any channel within the cluster are displayed opaque. Multiple topoplots represent the time course of the cluster. Color bars represent the relative change in power from baseline. *p < 0.05, **p < 0.01.