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Unformatted text preview: March 7, 2008 [Psychology] Consciousness an organism's awareness of its own self and surroundings Controlled Processing Mental activities requiring focused attention that generally interfere with other ongoing activities Automatic Process Mental activities requiring minimal attention and having little impact on other activates. Circadian Theory Sleep evolved so that human and nonhuman animals could conserve energy when they were not foraging for food and seeking mates. Sleep also serves to keep them still at times when predators are active. Repair/restoration theory Sleep helps us recuperate from depleting daily activities. Essential factors in our brain or body are apparently repaired or replenished while we sleep. We recover not only from physical fatigue but also from emotional and intellectual demands. Stage 1 (10 sec 10 min; theta waves) Breathing becomes regular, your heart rate slows, and your blood pressure decreases. Stage 2 (10 min 20 min; Theta Waves & K complexes) Sleep spindles Psychology Review March 7, 2008 [Psychology] Stage 3 & 4 (3 short transition (Theta & Delta waves); 4 30 min 40 min (Delta Waves) Hard to awaken; most likely to wet the bed or sleepwalk. Psychology Review ...
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