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. Author manuscript; available in PMC: 2014 May 21.
Published in final edited form as: J Sleep Res. 2013 Jun;22(3):264–271. doi: 10.1111/jsr.12009

Figure 1. Experimental design.

Figure 1

(A) EEG slow-wave activity (SWA, EEG power between 0.5–4 Hz) and corresponding hypnogram during 4 hour waking period in one individual rat. Local electrical stimulations (red arrows) were performed at the beginning (W0) and at the end (W4) of a 4 hour wake period (W4. (B) Schematic depiction of the stimulating and recording sites on the skull surface (FR, FL = frontal right, frontal left, PR = parietal right). C. Top left: single-trial LFP responses in the left frontal derivation after the right frontal cortex was stimulated (120 trials from one representative rat). Voltage is color-coded (red, positive; blue, negative). Bottom left: Corresponding single-trial profiles of neuronal spiking. Each dot is a spike. Right: Average LFP evoked potential (top) and the profile of neuronal spiking (bottom) between all trials shown on the left. (D) Average profile of neuronal spiking in the frontal (F) and in the parietal (P) cortex during the first 30 ms after stimulus (mean values + SEM, n=9 rats).