Skip to main content
. Author manuscript; available in PMC: 2013 Dec 18.
Published in final edited form as: Curr Biol. 2012 Nov 15;22(24):2313–2318. doi: 10.1016/j.cub.2012.10.020

Figure 2.

Figure 2

Time-frequency representations (TFRs) of power for epochs time-locked to the peaks of the alpha rhythm. The TFRs were calculated per epoch and then averaged. The TFRs for the supragranular (A) and granular (B) layers reveal a robust modulation in the gamma activity (50–200 Hz) phase-locked to the alpha oscillations. The modulation was virtually absent in the infragranular layers (C). The TFRs were normalized relatively to the average power per frequency. The averaged unfiltered traces reveal alpha activity in the bipolar LFP (D). The averaged TFRs and LFPs were calculated from ~3000 epochs.