Outline2 - Psych 101 Outline for Exam 2 Consciousness...

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Psych 101 Outline for Exam 2 Consciousness : Consciousness is our awareness of our environment and ourselves. It allows us to focus on two things at once. Levels of Awareness- - High Level Awareness: o Controlled processes like learning to drive a car, studying, flying a plane - Lower Level Awareness: o Automatic processes like using a computer/typing or text messaging, minimal attention is required. o Daydreaming is like a “time out” where we shift our attention from the outside world to our inside world. o Altered states of consciousness included inebriation, fatigue, meditation, hypnosis. o Sleep and dreams involve consciousness at a very low level. - No Awareness: o Unconscious mind (Freudian view) means that we are unaware of our actions. Things that are too anxiety provoking are pushed out of consciousness. o Unconscious mind (non-Freudian view) is being physically knocked out by a physical blow or anesthesia. Sleep is a restorative and protective process necessary for all humans to function properly. It comes and goes regardless to the amount of stimulation in environment. Theories of Sleep- - Restorative Process o Commonsense view that sleep is necessary to replenish depleted every reserves, repair cells, and eliminate waste products. It provides a “time out” for the body. - Protective Theory o AKA Circadian theory relies on biological rhythms to explain. Biological rhythms are period physiological fluctuations. Female menstrual cycle, geese migration, humans go through 24 hour alertness cycle ( circadian rhythm) , and 90 minutes cycles within the sleep process ( sleep stages) . Circadian rhythm is the biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24 hour cycle. Our body temperature rises as morning approaches, peaks during the day, dips for a time in early afternoon, and then begins to drop again before we go to sleep. Stages of Sleep: Our stages of sleep correspond to electro physical changes in our brain. There are two major stages: REM and non-REM. Within non-REM sleep there are 4 stages. Non-REM sleep: - Stage 1 sleep o Relatively light stage of sleep lasting only 5-10 minutes o Breathing and heart rate begins to slow o You may experience fantastic images, resembling hallucinations, sensory
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experiences that occur without a sensory stimulus. Sense of falling or floating weightlessly - Stage 2 sleep o About 20 minutes long o Breathing and hear rate slowing further o Characterized by periodic appearance of sleep spindles , bursts of rapid, rhythmic brain wave activity Sleep talking often occurs at this stage - Stage 3 sleep o Slow delta waves begin to appear o Continued slowing of bodily functions o Last about 30 minutes long, very hard to wake during this stage o One of the most restorative stages of sleep - Stage 4 sleep o Slow delta waves continue o Last about 30 minutes long, very hard to wake during this stage o One of the most restorative stages of sleep
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This note was uploaded on 05/05/2008 for the course PSYCH 101 taught by Professor Rowekamp during the Spring '08 term at Xavier.

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Outline2 - Psych 101 Outline for Exam 2 Consciousness...

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