101Consciousness_LectureOutline_Spr08

101Consciousness_LectureOutline_Spr08 - CHAPTER 6...

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CHAPTER 6 – CONSCIOUSNESS  LECTURE OUTLINE CONSCIOUSNESS = OUR MOMENT BY MOMENT AWARENESS OF OURSELVES AND OUR ENVIRONMENT and self in the environment I. THEORIES ON CONSCIOUSNESS A. A CONTINUUM OF AWARENESS  – Several levels – Least->Most B. LEVELS OF INFORMATION PROCESSING 1. Controlled      – Involves attention & conscious effort 2. Automatic      – Does not require conscious attention Allows us to have divided attention (“multi-task”?) C. THE MODULAR MIND We have several different information-processing modules  that process different   information  (e.g., sensation, memory, emotion, etc.) simultaneously to produce our  behaviors. II.  CIRCADIAN RHYTHMS Biological clock & daily rhythm of all body processes – e.g. blood pressure; hormone level;  body temperature; ect A. 24 HOUR CYCLE Triggered by environmental factors (e.g. meals, light & dark, alarm clocks) B. NATURAL CYCLE “Free-running circadian rhythm”; without visual cues – 24.2~24.8 hours;  PK2 molecule
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C.  MORNING VS. NIGHT PEOPLE Younger (18~30years old) -> more often night or evening people (functioning at a higher  level in the evening) Older adults -> more often morning people Overall males tend to be more evening than females III.  SLEEP  – non-waking state of consciousness;  A.  IMPORTANCE OF SLEEP Spend 30~40% of our lives sleeping B.  THEORIES ON WHY WE SLEEP 3. RESTORATION MODEL  – Sleep helps to restore our whole body Supportive Evidence : 1. We sleep longer after physical activity  2. When we sleep somatotropin is released which aids in tissue regeneration 3. Adenosine (a cellular waste product) is released as cells consume fuel ->  decreases alertness  a.
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