Rhythms. Types of Rhythms Circadian: about 24 hours Ultradian: less than 24 hours.

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Presentation transcript:

Rhythms

Types of Rhythms Circadian: about 24 hours Ultradian: less than 24 hours

Core Body Temperature Variation is related to: Alertness Jet lag

Zeitgeber: time cue Free run rhythm about 25 hours

Rat Free Run

Pineal Gland Secretes Melatonin Amount affected by: Light (suppression) Magnetic fields

Title

Alertness

Title

90 Minute Cycles Cerebral dominance mental rotation fantasy

Title

REM 1

Stages of Sleep – Awake, alert EEG Recording Beta waves Based on Hauri, 1982

Stages of Sleep – Relaxed, drowsy EEG Recording Alpha waves Based on Hauri, 1982

Stages of Sleep – Stage 1 EEG Recording Theta (6 CPS) Based on Hauri, 1982

Stages of Sleep – Stage 2 EEG Recording Sleep Spindle Based on Hauri, 1982

Stages of Sleep – Stage 3 EEG Recording Delta (1 CPS) Based on Hauri, 1982

Stages of Sleep – Stage 4 EEG Recording Delta (1 CPS) Based on Hauri, 1982

Title

Sleep Disorders Insomnia Narcolepsy Apnea

THE END

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