Chapter 4 - Chapter 4: Consciousness I. Consciousness a....

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Chapter 4: Consciousness I. Consciousness a. Awareness of everything going on inside and outside of us II. Sleep a. Circadian rhythm – 24 hour bodily rhythm b. Hypothalamus – affects glandular system c. Suprachiasmatic nucleus – internal clock tells people to wake/fall asleep i. Tell pineal gland when to secrete melatonin for sleepiness ii. Triggered by light/lack of light iii. Melatonin decreased in morning iv. Increased in evening d. 1/3 of life sleeping III. EEG a. Awake i. Beta waves ii. Fast irregular low amplitude b. Awake but relaxed i. Eyes closed, but awake ii. Alpha waves iii. Slow, regular, higher amplitude c. Sleep stage 1-2 i. Early, light sleep ii. Theta waves iii. High amplitude, slow, irregular iv. Stage 2 1. K complexes 2. Spindles (bursts of activity) d. Stages 3-4 i. Deepest sleep ii. Delta waves iii. Slower, larger e. REM sleep i. Rapid eye movement ii. Vivid dreaming iii. Paradoxical sleep 1. Somewhat paralyzed when we’re in REM sleep iv. REM rebound 1. When we don’t get to our REM sleep or enough of it
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Chapter 4 - Chapter 4: Consciousness I. Consciousness a....

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