Figure 6.

Alpha band activity for subsequent memory effect in the “No‐Remember” condition, i.e., later correctly forgotten trials (later NR‐misses) versus later unintentionally remembered trials (later NR‐hits). (A) A time‐frequency representation of power calculated for 12 central sensors (Neuromag sensor labels: 042, 043, 063, 071, 072, 073, 074, 104, 111, 114, 182, 221) when compared the later NR‐misses to the later NR‐hits (normalized by the mean of the two conditions) revealed an alpha power increase during the cue interval as well as item presentation (P < 0.05). (B) Topographical distribution of the alpha power increase (10 Hz; 1–2 s) for the later NR‐misses versus the later NR‐hits was found over central sensors (P < 0.05, uncorrected). (C) For the same comparison, a beamformer analysis revealed frontal midline structures including the left supplementary motor area (SMA (Brodmann Area 6); MNI coordinates x, y, z = [−26 −4 80]; P < 0.05, uncorrected). [Color figure can be viewed in the online issue, which is available at http://wileyonlinelibrary.com.]