Chapter 7

Information about Chapter 7

Published on November 28, 2007

Author: Clown

Source: authorstream.com

Content

Chapter 7: States of Consciousness:  Chapter 7: States of Consciousness What is Consciousness?:  What is Consciousness? Consciousness has been defined by psychologists as our awareness of ourselves and our environment. The awareness varies depending on our attention to the task at hand. Ex: driving. Consciousness and Information Processing:  Consciousness and Information Processing Consciousness describes what we are aware of but many things are processed outside of our “consciousness.” Difficult or novel tasks require more conscious attention than well learned tasks. Consciousness has a limited capacity Daydreams and Fantasies:  Daydreams and Fantasies Almost everyone daydreams at one point or another. Young adults tend to fantasize more than older adults, and admit to more sexual fantasies. Although 95% of all people have sexual fantasies, men tend to fantasize more than women. Fantasy-prone personality: someone who imagines and recalls experiences with lifelike vividness and who spends considerable time fantasizing. Why Might Daydreaming Be Helpful and Adaptive for Humans?:  Why Might Daydreaming Be Helpful and Adaptive for Humans? A way to escape Prepare for future events Aware of unfinished business Increase creativity Substitute for impulsive behavior Biological Rhythms:  Biological Rhythms Biological Rhythms: periodic physiological fluctuations built into human beings. Ex: 28 day menstrual cycle, 24 hour alertness cycle, annual cycle, 90 minute sleep cycles. Circadian Rhythm: biological clock that regulates body rhythms on a 24 hour cycle….larks vs. owls. Is P.M.S. A Myth?!?:  Is P.M.S. A Myth?!? “Premenstrual Syndrome:” feelings of increasing tension and stress that occur before onset of menstruation. Human tendency to remember instances that confirm our beliefs. Placebos work the same Sadness, lethargic,irritability, headaches, insomnia Sleep:  Sleep Sleep: refers to the periodic, natural, reversible loss of consciousness. Using an EEG, sleep researchers have shown the mind is “awake” during various stages of sleep. Sleep Stages: Stage 1:  Sleep Stages: Stage 1 As we lay with our eyes closed we are in an awake but highly relaxed state characterized by alpha waves (slow waves) being emitted from our brain. As we fall asleep, we have a 50% decrease in alpha wave activity…sometimes referred to as “drowsy sleep.” During Stage 1 sleep, we often experience hallucinations: false sensory experiences. We may feel a sensation of falling or floating. 5 minutes Second Stage: Sleep Spindles:  Second Stage: Sleep Spindles After about 5 minutes in stage 1 sleep, you sleep into Stage 2 sleep which is characterized by Sleep Spindles: bursts of rapid, rhythmic, brain wave activity. Stage where you are clearly asleep, sleep talking can occur in this stage or any other later stage. 20 minutes Stage Three: Transition Stage:  Stage Three: Transition Stage Stage Three begins your descent into “slow wave sleep.” Delta Waves: (large, slow brain waves associated with deep sleep) begin appearing in stage 3 but are increasingly apparent in Stage 4. Stage Four: Delta Waves:  Stage Four: Delta Waves Stage of deep sleep characterized by Delta Waves. Stage when you are hard to awaken…but still aware of stimuli around you. Stage at which children may wet the bed or sleep walk. Also experience night terrors. Night Terrors:  Night Terrors Occur during late stage 4 sleep and are characterized by high arousal and an appearance of terror but are seldom remembered. R.E.M. Sleep (Paradoxical Sleep):  R.E.M. Sleep (Paradoxical Sleep) After stage 4, your bodies cycles back to stage 3, stage 2, and into REM sleep. A Normal Sleep cycle lasts about 90 minutes. R.E.M. Sleep (Paradoxical Sleep):  R.E.M. Sleep (Paradoxical Sleep) R.E.M.: rapid eye movement sleep, stage where vivid dreams occur. Known as Paradoxical because muscles are relaxed yet body is highly active. Heart rate increases, Breathing more rapid, eyes dart behind lids. Genitals become aroused during R.E.M. sleep even when dreams are not sexual in nature. As sleep cycle continues, R.E.M. sleep gets longer and longer. Brain Waves and Stages of Sleep:  Brain Waves and Stages of Sleep So Why Do We Sleep? :  So Why Do We Sleep? Most ppl will sleep for 9 hours if they could Sleep debt Decrease in work productivity Increase in auto accidents Suppressed immune system Alter metabolic and hormonal functioning Decrease in performance and creativity Sleep Function :  Sleep Function Theories: 1. Sleep protects 2. Helps us recuperate 3. Might help us grow Sleep Deprivation:  Sleep Deprivation Sleep Disorders:  Sleep Disorders Insomnia: inability to fall asleep or stay asleep. 10-15 % of adults Sleeping pills and alcohol might make it worse Less REM sleep Sleep Disorders:  Sleep Disorders Sleep Disorders:  Sleep Disorders Sleep Apnea: sleep disorder characterized by a temporary stoppage of breathing during sleep and consequent momentary awakenings. Often complained about as “snoring.” Often interrupts deep sleep stages leaving person feeling exhausted. Tips for Sleeping:  Tips for Sleeping Relax before bed Avoid caffeine A glass of milk Regular cycle Exercise regularly,but not in the late evening Dreams :  Dreams What’s the Meaning Of Dreams? Depends Who You Ask!:  What’s the Meaning Of Dreams? Depends Who You Ask! Psychoanalytic Theorists like Freud will argue that dreams represent the royal road to the “unconscious.” Dreams represent unresolved wishes/desires and discharge feelings that would be unacceptable if consciously voiced. Sigmund Freud- The Interpretation of Dreams (1900) wish fulfillment discharge otherwise unacceptable feelings Manifest Content: represents remembered story line of a dream. Latent Content: represents underlying meaning of dreams dealing with wishes and drives. What’s The Meaning of Dreams? Depends Who You Ask?:  What’s The Meaning of Dreams? Depends Who You Ask? As Information Processing helps consolidate the day’s memories Stimulates neural development What’s The Meaning of Dreams? Depends Who You Ask?:  What’s The Meaning of Dreams? Depends Who You Ask? Physiological Function of Dreams: periodic brain activity associated with R.E.M. sleep gives the brain needed activity to make neural connections. Also helps facilitate memory. Activation-Synthesis Theory: dreams are result of brain’s attempt to make sense of random neural activity. Visual cortex among other areas like Limbic System active during R.E.M. sleep. Mind always tries to make sense of stimuli. What’s The Meaning Of Dreams? Depends Who You Ask!:  What’s The Meaning Of Dreams? Depends Who You Ask! Dreams As Part of Cognitive Development: all mammals experience R.E.M. sleep and many researchers believe it helps facilitate cognitive development. R.E.M. Rebound: tendency for R.E.M. sleep to increase following deprivation. May illustrate a biological need for it. Lucid Dreams:  Lucid Dreams Lucid Dreams: are dreams in which you become aware that you are dreaming and you can control aspects of your environment in the dream. What do we dream about? :  What do we dream about? Sex- 1 in 30 for women;1 in 10 for men Women dream about men and women; 65% of men's dreams are about men Most dreams are about events in our daily lives Previous day’s experiences Forget things that happen 5 minute before we fall asleep Do not remember taped info Have you ever dreamed of…..? :  Have you ever dreamed of…..? Falling 83% Being attacked 77% School,teacher, studying 71% Sexual experiences 66% Arriving late 64% Eating 62% A loved person dying 57% Being locked up 56% Have you ever dreamed of…..?:  Have you ever dreamed of…..? Finding money 56% Swimming 52% Snakes 49% Being inappropriately dressed 46% Unable to breathe 44% Being nude 43% Fire 41% Failing an Exam 39% Killing Someone 26% Slide34:  Hypnosis Hypnosis :  Hypnosis Hypnosis- a social interaction in which one person ( the hypnotist) suggests to another ( the subject) that certain perceptions, feelings, thoughts or behaviors will occur Hypnosis:  Hypnosis Can anyone Experience Hypnosis? It depends on the subject’s openness to suggestion Hypnosis:  Hypnosis Can Hypnosis Enhance Recall of Forgotten Events? Hypnosis does not help us recover “accurate memories as far back as birth” Highly hypnotizable ppl are especially venerable to false memory suggestions Hypnosis:  Hypnosis Can hypnosis force ppl to act against their will? An authoritative person in a legitimate context can induce ppl- hypnotized or not- to perform some unlikely acts Can Hypnosis Alleviate Pain :  Can Hypnosis Alleviate Pain YES 10% of us can become so deeply hypnotized that even major surgery can be performed without anesthesia Dissociation- a split between levels of consciousness. Dissociate the sensation of the pain from the emotional suffering Selective Attention Is Hypnosis an Altered State of Consciousness :  Is Hypnosis an Altered State of Consciousness Hypnosis as a social phenomenon Behaviors produced through hypnotic procedures can also be produced without them PPl. do what is expected of them Slide41:  Unhypnotized persons can also do this Is Hypnosis an Altered State of Consciousness:  Is Hypnosis an Altered State of Consciousness Hypnosis As A Divided Consciousness Explains hypnosis not as a unique “trance state” where the “subconscious” is under control by the hypnotist but rather as a split in awareness caused by the “subjective experience of hypnosis.” Hilgard’s Experiment Perspectives On Dissociation:  Perspectives On Dissociation Hilgard’s Hidden Observer:  Hilgard’s Hidden Observer Hidden Observer: describes hypnotized subject’s awareness of experiences, such as pain, that go unreported during hypnosis. Is a part of the person that has the experience. Hypnosis Concepts: Can Hypnosis Have an Effect After The Session?:  Hypnosis Concepts: Can Hypnosis Have an Effect After The Session? Posthypnotic Amnesia: supposed inability to recall what one experienced during hypnosis; induced by the hypnotist’s suggestion. “You will no longer remember anything you experienced today.” Posthypnotic Suggestion: a suggestion made during a hypnosis session that will be carried out after hypnosis session is over. “You will no longer feel the need to smoke after this session is over.” Slide46:  Near Death Experiences Near Death Experiences:  Near Death Experiences Near Death Experiences: an altered state of consciousness reported after a close brush with death. Dualism:  Dualism Dualism: argues that the mind and body are two distinct entities that interact. The “mind” is nonphysical and can exist apart from the physical body. Was put forth by many philosophers including Renee Descartes and Socrates. Monism (Materialism):  Monism (Materialism) Monism argues that the mind and body are different aspects of the same thing. Mind and body cannot be separated without bodies we are nobodies. Thomas Hobbes along with many philosophers and scientists support this viewpoint. How Would Dualists vs. Monists explain “Near Death Experiences?”:  How Would Dualists vs. Monists explain “Near Death Experiences?”

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