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. 2021 Feb 24;11(1):10–18. doi: 10.1089/ther.2020.0002

FIG. 3.

FIG. 3.

Increases in power in the delta, theta, alpha, and beta-1 frequency bands. (A) Displays three ECoG traces from a rat which underwent CHI with corresponding power spectral densities below in (B). Panel I displays 1 second of a theta oscillation with a peak frequency at ∼7 Hz. Panel II displays 1 second of a delta oscillation with a peak frequency ∼1–2 Hz. Panel III displays an ECoG trace containing power increases in the delta, theta, alpha, and beta-1 frequency bands. Notice the sequence of power increases beginning 15 minutes and continuing 30 minutes into the recording in (C). (D) Contains the spectrogram of the hour long recording. Roman numerals I, II, and III in (D) mark where theta oscillations, delta oscillations, and increases in power from delta to beta occurred during the hour.