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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: Clin Neurophysiol. 2016 Mar 16;127(6):2414–2422. doi: 10.1016/j.clinph.2016.03.005

Figure 3.

Figure 3

Group-level spectrograms within the 0 to 50 Hz frequency range computed from 1 minute segments prior to surgical stimulation. A. Median spectrogram during baseline showing a relative absence of power in the theta and gamma frequency bands and power in the alpha/beta frequency band (n = 12). B. Median spectrogram during gamma burst. Compared to baseline, there is increased power in the slow, theta and gamma frequency bands and decreased power in the alpha/beta frequency band. C. Median spectrogram during beta/gamma stable. Compared to baseline, there is increased power in the theta and gamma frequency bands and decreased power in the alpha/beta frequency band (n = 11).

dB = decibel; Hz = hertz.