PSYCH Lecture 7 - Consciousness I

PSYCH Lecture 7 - Consciousness I - Consciousness Part One...

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Consciousness Part One Febuary 1 st , 2011
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Consciousness: The awareness of internal and external stimuli Various kinds of awareness: Of external events Of internal sensation Of oneself as unique to experiences Of thoughts about experiences
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Subliminal Perception Subliminal Perception: Can we be unaware of things and still have them have an impact? James Vicary and “Drink Coke and Eat Popcorn” Krosnick study: Subliminal messages may shape attitudes without conscious awareness
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Freud and Consciousness Three Levels of Consciousness Conscious: Mental events we are aware of Preconscious: Mental events that can be brought to our awareness Recall your 6 th grade teacher…not at top of your head all the time Unconscious: Mental events inaccessible to our awareness
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Circadian Cycles Individuals have different internal clocks Lady whose internal clock is so fast, she sleeps an hour earlier everyday Most run on a 24-hour cycle Almost all are set for sleep at night Night time sleepiness: 2am-6am peak Siesta Zone: 1-4 pm (time for nap!) Programmed for naps
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Sleeping & Dreaming Functions of Sleep Memory Consolidation Energy Conservation Helps restore bodily functions
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Sleep Deprivation Decrease immune functions Leads to hallucination & perceptual disorders Less alert and attentive More irritable (personality/mood) Ability to perform simple tasks decline Such as typing, driving a car
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Stages of Sleep Non-REM (Rapid Eye Movement) Sleep Stage 1 light sleep, small irregular brain waves, muscles relax
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