Figure 5

EEG profile of all-night MCS recording. In this case we observe increase of the number of sleep spindles in specific intervals during the night, and their inverse relationship to slow waves and other activity, corresponding to the pattern of normal sleep profile. Subplots organized as in Figure 1. (a), (b), (c) and (e) – numbers of alpha, theta and beta waves and sleep spindles, detected per subsequent 3-min epochs, (d) markers of occurrence of K-complexes, (f) percentage of each 20-second epoch occupied by SWA; horizontal lines at 20% and 50% mark the classical criteria for stages 3 and 4 scoring.