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. 2017 Jan 24;9:1. doi: 10.3389/fnagi.2017.00001

Figure 4.

Figure 4

Reward related theta power modulation. (A) Top row: time-frequency plot for high vs. low reward predicting images for young participants (averaged over all electrodes that form the significant cluster). Bottom row: topographical distribution averaged over the theta-band in the significant time window (56–552 ms after stimulus onset). (B) Top row: time-frequency plot for high vs. low reward predicting images for the elderly (not significant; averaged over all electrodes that were part of the significant cluster in the young participants). Bottom row: topographical distribution averaged over the theta-band in the same time window as in panel (A). (C) Top row: time-frequency plot of the difference in reward anticipation between young and elderly participants (see text; averaged over all electrodes that form the significant cluster). Bottom row: topographical distribution averaged over the theta-band in the significant time window (40–624 ms after stimulus onset). “X” indicates electrodes of the significant cluster.