Figure 6.

Interaction of task and age, calculated by subtracting the difference between encoding and retrieval in the young participants from the difference in the elderly. Elderly have a stronger deactivation in retrieval than young participants. *p < 0.05. Raw power values are plotted in a bar graph to illustrate the interaction. Single topoplot across the visual frequency peak (8–30 Hz) of the cluster (see singleplot). 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.