Spectral Gini Index for Quantifying the Depth of Consciousness

Figure 2

Examples of 5 s long EEG signals for (a) the “awake” state before the beginning of the anesthetic infusion, (b) the “anesthetized” state with the maximum plasma concentration of propofol, and (c) the state after the ROC. As the depth of consciousness increases, EEG signal exhibits slowly changing activities.

(a)

(b)

(c)