Propofol anesthesia induces phase synchronization changes in EEG.

  title={Propofol anesthesia induces phase synchronization changes in EEG.},
  author={Miika Koskinen and Tapio Sepp{\"a}nen and Juha Tuukkanen and Arvi M. Yli-Hankala and Ville J{\"a}ntti},
  journal={Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology},
  volume={112 2},
OBJECTIVE Phase coupling between EEG channel pairs in various frequency bands was evaluated during propofol anesthetic induction and recovery periods. METHODS Twenty-three patients participated in the study. Phase synchronization indices based on the Hilbert transform were investigated on frequency bands 0.05-1 Hz, 1-4 Hz, 4-8 Hz, 8-12 Hz and 12-16 Hz for all pairs of the 9 EEG channels covering midline and frontal areas. A straight line was used to approximate the index values as a function… CONTINUE READING

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