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Hypnosis and Pre-sleep Patterns

  • Henri Gastaut

Abstract

I should like to consider one particular neurophysiological aspect of hypnosis—that of electroencephalography. The basic question is to ascertain whether there exists some relation between hypnosis and sleep, or pre-sleep patterns. The great majority of investigations on sleep have so far been focussed essentially on the study of two phases of sleep: that associated with slow EEG activity, on one hand; and that with fast EEG activity, or stage 1-REM sleep, on the other. Very few investigators, however, have directed their attention to the EEG patterns in drowsiness, and it is this particular aspect that I propose to discuss here. Almost all authors are agreed that, amongst the phases of sleep, it is possible to distinguish: stage 1 (known in America as “1—non-REM”), which is a stage of light sleep; the stages of slow wave sleep, which would include stages 2, 3 and 4; and finally, the stage of dreaming sleep, which is called “1-REM” in the USA, and “PMO” (phase of ocular motion) in France. These, then, are the constituent parts of sleep: drowsiness, slow wave sleep, and dreaming sleep.

Keywords

Slow Wave Sleep Alpha Activity Alpha Rhythm Deep Sleep Alpha Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1969

Authors and Affiliations

  • Henri Gastaut
    • 1
  1. 1.Faculty of MedicineUniversity of MarseillesFrance

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