Ultradian Rhythms

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  • Ultradian Rhythms
    • < 24 hr
    • Stage 1
      • Brain activity down 50%
      • Eye/muscle slow
      • Sudden muscle contractions
      • Theta
    • Stage 2
      • Brain waves slow
      • Eye/muscle stops
      • Sleep spindles
    • Stage 3/4
      • Delta
      • Deep sleep
      • Hard to wake/disorientated
      • No muscle/eye movement
    • REM
      • HR/BR/BP increase
      • Shallow breathing
      • Muscle paralysis
      • Dream
    • Partial sleep deprivation
      • Peter Tripp
      • Randy Gardner
    • Dement & Kleitman
      • Woke up ps in REM (scans)
      • REM = dream
        • Individual diffs
          • Holism
        • Demand cs
    • Jouvet
      • Flowerpot cats
        • Ethics
        • Animal research
          • Generalisable
            • Biological
        • Concurrent validity
          • Rechshaffen
      • Cholingeric cells

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