1. SLEEP Chapter 5 Huffman/Ch 6 Nairne States of Consciousness

2. Consciousness: an organism’s subjective awareness of internal and external events in its environment.

3. Levels of awareness : –HIGH: Controlled processes that require attention. Concentration! Ex. Taking a test) –MIDDLE: Automatic processes requiring minimal attention (such as riding your bike) –LOWEST: Minimal or no awareness of the environment

4. Levels of awareness : –HIGH: Controlled processes that require attention (and interfere with other functions) –MIDDLE: Automatic processes requiring minimal attention (such as riding your bike) Automaticity – fast and effortless processing that requires little or no focused attention

5. Levels of awareness : –HIGH: Controlled processes that require attention (and interfere with other functions) –MIDDLE: Automatic processes requiring minimal attention (such as riding your bike) –LOWEST: Minimal or no awareness of the environment

6. Altered State of Consciousness Awareness that is distinctly different in quality or pattern from waking consciousness Sleep, daydreaming, dreaming, hypnosis, meditation, intoxication

7. - Sleep helps to repair your body. - Sleep helps keep your heart healthy. - Sleep reduces stress. - Sleep improves your memory. - Sleep helps control body weight issues. - Sleep reduces your chances of diabetes. - Sleep reduces the occurrence of mood disorders - Teens need Approx. 9.25hrs of sleep!!!! - We spend One third of our live in sleep mode

8. EEG Changes During Sleep –Wakefulness; as most of you are now: beta activity – Eyes closed: alpha activity

9. EEG Changes During Sleep Stage 1: Light Sleep – Alpha Waves Stage 2: Dreams in stages 1-4 stages deal with past events.

10. EEG Changes During Sleep Stage 4: almost all delta waves –Very hard to wake during this stage!!

11. EEG Changes During Sleep REM stage: Rapid Eye Movement (saw-tooth pattern) Dreams usually deals with our future. B.A.D.—wave order Beta Alpha Delta

13. p154 SLEEP CHART

22. p150 SUPRACHIASMATIC NUCLEUS

23. Biological idea Circadian rhythms Occur every 24hours! 1) Sleep-wake cycle 2) Body temp 3) Influenced by changes in routine. # Jet lag # New work shifts New work shifts

24. How much do we sleep compared to other species? Giant sloth‐ 20 hours/day Giant armadillo‐18 hours/day Arctic ground squirrel‐ 16 hours/day Cat‐14 hours/day Gorilla‐12 hours/day Jaguar‐10 hours/day Chimp‐9 hours/day Human, rabbit, pig‐8 hours/day Gray seal‐6 hours/day Cow, goat, elephant‐3 hours/day Horse, zebra‐2 hours/day

25. Theories of Sleep Repair/Restoration –Sleep allows for recuperation from physical, emotional, and intellectual fatigue Survival Value –Sleep evolved to conserve energy and protect our ancestors from predators