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

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Presentation on theme: "Rhythms. Types of Rhythms Circadian: about 24 hours Ultradian: less than 24 hours."— Presentation transcript:

1 Rhythms

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

3 Core Body Temperature Variation is related to: Alertness Jet lag

4 Zeitgeber: time cue Free run rhythm about 25 hours

5 Rat Free Run

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

7 Title

8

9

10 Alertness

11 Title

12 90 Minute Cycles Cerebral dominance mental rotation fantasy

13 Title

14

15 REM 1

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

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

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

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

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

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

22

23

24

25

26 Title

27 Sleep Disorders Insomnia Narcolepsy Apnea

28 THE END


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