Consciousness
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Transcript of Consciousness
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Consciousness and Its Altered States
January 29, 2013
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OBJECTIVES• At the end of the discussion about
Consciousness you are expected to:
COGNITIVE:define consciousness in your own
wordsexamine critically one’s
consciousness
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AFFECTIVE find pleasure in studying the
consciousness of human beings
PSYCHOMOTOR draw-out conclusions based on
the given facts about human consciousness
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Definition and Brief History of Consciousness
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Consciousness is a state of
awareness of the outside
world, of our own thoughts and feelings
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William James
• One of the earliest Psychologists who dealt with consciousness
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Established the first laboratory of experimental Psychology in Harvard University
Believes that our everyday conscious experience is only one of the possible forms of consciousness
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He argued that there are uncharted regions of human consciousness that can be explored by studying mental illnesses, dreams and drug use
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INTROSPECTIONExamination of
one’s own thoughts and feelings
Objective description of one’s experiences
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What does it mean to be conscious?
Normal Waking Consciousness
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Directed Consciousness
•Our conscious experience is focused, ordered and one-tracked
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Flowing Consciousness
•When our awareness drifts from one thought to another
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Daydreaming
• This is the period of focused, directed thinking and feeling about fantasies
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Daydreams include fantasies about ordinary, everyday things as well as extravagant flights of fancy (Klinger,1987)
Daydreams add color and intrigue to our lives, making them more exciting.
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Advantages and Uses of daydreams
Daydreams help make our life more creative and original
Use the past to explore the future
Help develop your personality
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Divided Consciousness
• Characterized by splitting of two conscious activities that occur simultaneously, performing two activities at the same time
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Consciousness and
Attention
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Selective Attention
•The cognitive mental process that limits the amount of information into consciousness
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Attention•William James referred to this as
the means by which we can scan the environment and select only stimuli to which we respond while ignoring other stimuli
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Subconscious Mental Activity
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Subconscious processes are mental or behavioral activities that take place
outside of conscious awareness
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Are those subconscious activities that can be
brought into awareness by paying attention
Preconscious Processes
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Unconscious Process
Are those subconscious mental activities that are more or less
permanently unavailable to consciousness
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Altered States of Consciousness
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MeditationA popular exercise and an important part of yoga and other religious practices of Buddhism and other Asian
religions
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Simplest form involves assuming
a relaxed sitting position or lying
position and breathing deeply,
slowly, and rhythmically
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• In some forms of meditation, the individual repeats a
sound or word silently to himself or herself – these
words which have religious meanings are known as
mantras
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Goal of Meditation
Transcendental State achieving a desirable
altered state of consciousness
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Effects of Meditation
POSITIVE Has effect on personality,
performance and perception
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provides evidence for enhanced creativity, perceptual sensitivity, self-actualization, self-control and satisfaction in life
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Elicits significant physiological effects– Heart rate drops during
meditation– Blood pressure falls on
regular practice
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Can be therapeutic for various psychological and psychosomatic disorders like anxiety, phobia, post-traumatic stress disorders, mild depression, etc.
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NEGATIVE Psychological difficulties at any
stage specifically for beginners – episodes of anxiety and depression and even psychotic breaks particularly for those with history of previous psychosis may surface according to some experts
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Hypnosis
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Is a psychological state, induced by ritualistic procedure in which the subject experiences changes
in perception, memory and behavior in response to
suggestions by the hypnotist
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Characteristics1. A sense of deep relaxation
and peacefulness exists
2. A hypnotized person experiences hypnotic hallucinations
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3. When told to do so, the subject may experience hypnotic analgesia, that is, the subject may lose the sense of touch or pain in some regions of the body
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4. The subject can sometimes be made to feel that he or she is going back in time to an earlier stage of life, such as childhood
5. The actions of hypnotized individual sometimes seem as if they are out of individual’s control
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Depersonalization• Refers to the perceptual experience of
one’s body becoming “distorted” or “unreal”• It includes the illusion that the mind has
left the body and traveled about in a so called “out-of-body experience” or “astral projection”
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Altering Consciousness With
Drugs
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Psychoactive Drugs
Drugs that alter conscious
experience . They have
powerful effects and can be very
addictive.
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TYPES
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A. StimulantsDrugs that increase the
activity of the CNS – providing a sense of energy and well-being
Often they are called uppers
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Examples
• Caffeine – coffee, tea, soft drinks• Nicotine – cigarettes and other
tobacco products
HEALTH RISK• Abnormal heart rhythms, anxiety,
insomnia
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• Amphetamines – stimulant drugs that generally produce a conscious sense of increased energy, alertness, enthusiasm, and a euphoria
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Amphetamine Psychosis
A prolonged reaction to excessive use of stimulants characterized by distorted thinking, confused and rapidly changing emotions
and intense suspiciousness
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• Cocaine – made from the leaves of coca plants–Commonly inhaled as powder or
smoked in the dangerously powerful form known as crack and the poor man’s cocaine known as shabu–Repeated use often causes a paranoid
suspiciousness
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B. Narcotics• Are powerful and highly
addictive depressants
• Examples: Heroin , opium – relieve pain and induce a sudden rushing high, followed by a relaxed lethargic drowsiness
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C. Depressants
•Are a large class of psychoactive drugs that influence conscious experience by depressing parts of the CNS
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Examples
• Alcohol – most widely abused drug to which most individuals are physiologically addicted- psychotropic drug in liquid form
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Effects• Works principally as a depressant,
though it stimulates sociability and exuberant activity• It impairs visual judgment and motor
control and induces sleepiness• It worsens negative moods,
particularly deepening depression
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• Sedatives - Often called downers, are depressants that in mild doses generally produce a state of calm relaxation• Prescribe to aid sleep and
sometimes to combat anxiety
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• Tranquilizers - Milder drugs that are similar to sedatives
• They produce a sense of
calm relaxation for a brief period of time
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D. Hallucinogens• Sometimes called psychedelics• These drugs alter perceptual
experiences, but only large doses cause vivid hallucinations• Examples are Mescaline, Lysergic
acid diethylamide (LSD) and psilocybin
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Other Drugs•Marijuana – produces a sense of
relaxation and well-being
–Prolonged use decreases the efficiency of cognitive process, weakens the body immune system, decreases the action of male hormones and increases risk of lung cancer
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• Inhalants – substances that when inhaled produce a sense of intoxication–Toxic (poisonous) substances are
glue, paint, etc.–These toxic fumes often cause
permanent damage and other serious complications
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