Fig. 4From: Different vulnerability of fast and slow cortical oscillations to suppressive effect of spreading depolarization: state-dependent features potentially relevant to pathogenesis of migraine auraEffect of unilateral SD on ECoG power in different frequency bands in awake rats. Graphs show mean power of delta (1–4 Hz), theta (4–8 Hz), alpha (8–12 Hz), beta (12–25 Hz) and gamma (25–50 Hz) oscillations (marked on the right Y-axis) in the frontal (left fragments) and occipital (right fragments) cortices ipsilateral (upper fragments) and contralateral (lower fragments) to SD (n = 7). Within each band, lines with shadows mark baseline activity power, circles mark power for 10-s intervals following SD initiation, dark circles indicate intervals significantly differed from the baseline level (p < 0.05, one-way ANOVA). Gray vertical areas in the fragments show periods of DC potential shift (depolarization phase of SD) in respective cortical regionsBack to article page