Chapter 4Q - Consciousness Consciousness State of awareness...

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Unformatted text preview: Consciousness Consciousness State of awareness of ourselves and of the world around us Awareness of cognitive processes Thoughts, feelings, sensations, and perceptions of outside world What you are aware of at a particular point in time Waking consciousness Shifts thru day: from alert wakefulness, to drifting consciousness to unconsciousness during sleep Circadian Rhythm Melatonin: day: production drops, increases without daylight, sleepiness Jet Lag Unconsciousness Responsive to important or relevant stimuli Alarm clock Childs cry Spend 1/3 of lives sleeping Stages of Sleep EEG: electroencephalograph Tracks brain waves Intensity (height) and frequency (waves cycles per second) Awake Beta waves Low amplitude Relaxed wakefulness (twilight stage) Closed eyes, relaxed in bed Slower rhythmic cycles Alpha waves Stages of Sleep Stage 1 Small irregular waves Easily awakened Stage 2 2 minutes after stage 1 Stages of Sleep...
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This note was uploaded on 09/13/2011 for the course PSYCH 101 taught by Professor Smith during the Spring '11 term at Community College of Philadelphia.

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Chapter 4Q - Consciousness Consciousness State of awareness...

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