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. Author manuscript; available in PMC: 2015 Mar 15.
Published in final edited form as: Behav Brain Res. 2013 Dec 31;261:258–264. doi: 10.1016/j.bbr.2013.12.031

Figure 1.

Figure 1

Example virtual sensor time series of spontaneous fast gamma (80-140 Hz) hippocampal activity from two participants. Septal and temporal (Tem.) hippocampal activity (left and right) was reconstructed by adaptive minimum-variance beamformers and source power was integrated over a 280-s window during which participants rested. Brief periods of increased fast gamma power can be observed in the time window displayed (1.53 s), which may be related to hippocampal ripple events observed rodents.