Frontal EEG Temporal and Spectral Dynamics Similarity Analysis between Propofol and Desflurane Induced Anesthesia Using Hilbert-Huang Transform

Figure 6

Comparison between the multitaper method and HHT using EEG data. (a, b) Traditional multitaper spectrogram and HHT of EEG under propofol maintenance, respectively; (c, d) traditional multitaper spectrogram and HHT of EEG under desflurane maintenance, respectively. Clearly, the HHT plots show sharper frequency energy distribution and clearer pattern.