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by: Briana Notetaker

Consciousness PSYC 1010

Briana Notetaker
La Salle

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About this Document

Sleep Rhythm
Introductory Psychology
Class Notes
25 ?




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This 2 page Class Notes was uploaded by Briana Notetaker on Tuesday April 26, 2016. The Class Notes belongs to PSYC 1010 at La Salle University taught by Lacombe in Spring 2016. Since its upload, it has received 9 views. For similar materials see Introductory Psychology in Psychlogy at La Salle University.

Similar to PSYC 1010 at La Salle

Popular in Psychlogy


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Date Created: 04/26/16
Consciousness & Information processing Consciousness – modern psychologists believe it is an awareness of ourselves and  our environment   Some occur spontaneously – daydreaming, drowsiness, dreaming  Some are physiologically induced – hallucinations, orgasm, food or oxygen  starvation  Some are psychologically induced – sensory deprivation, hypnosis,  meditation Rhythm of Sleep ­   Circadian Rhythms – occur on a 24 hour cycle and include sleep and  wakefulness, which are disrupted during transcontinental flights  Sleep Stages­ about every 90 minutes we pass through a cycle of five  distinct sleep stages ( can be measured through feedback of left eye  movement, right eye movement, muscle tension, and brain waves)  Awake but Relaxed – brain starts to slow down; regular alpha waves 9­14  cps  Stage 1­2 – as the brain slows down more theta waves appear 5­8 cps  (falling asleep); stage 2 produces some sleep spindles( burst of activity) and  every once in a while a K complex appears   Stage 3­4 – deepest stage of sleep; larger amplitude, delta waves 1.5­4 cps;  in stage 4 your brain is fully asleep but your bodies muscle tone is still there. Brain is asleep but the body is active  Stage 5: Rapid Eye Movement Sleep – (Dreaming) brain engages in low  amplitude, fast and regular beta waves 15­40 cps, awake­aroused state;  muscle tone is lost. Body is asleep but brain is active  Sleep Deprivation  Fatigue and subsequent death  Impaired concentration  Emotional irritability  Depressed immune system  Greater vulnerability


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