Figure 4
From: Interhemispheric asymmetry during NREM sleep in the dog
Asymmetry index values (Mean + / − SE) in frequency range 1–30 Hz in the first and second sleep cycle of sleep recording 2. In the first sleep cycle in frequency range of 10.5–11.5 Hz greater rightward asymmetry was observed, compared to the second sleep cycle of sleep recording 2. Frequency bins below the statistical threshold (all ps < 0.05, fulfilling the criteria of a significant Rüger area) are illustrated by a black horizontal line.
