consciousness
DESCRIPTION
Consciousness. Ongoing awareness of our own thoughts, sensation, feelings, and existence Normal consciousness Altered states of consciousness (ASC). Stage 1. Very light sleep Alpha waves are replaced with random activity Hypnogogic images may appear. Alert:. Relaxed:. Stage 1:. Stage 2. - PowerPoint PPT PresentationTRANSCRIPT
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Consciousness
Ongoing awareness of our own thoughts, sensation, feelings, and existence
• Normal consciousness• Altered states of consciousness (ASC)
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Stage 1• Very light sleep• Alpha waves are replaced with random activity• Hypnogogic images may appear
Alert:
Relaxed:
Stage 1:
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Stage 2
• Sleep is deeper.
Stage 2:
• Spindles appear in EEG
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Stage 3
• Sleep is deeper yet.
Stage 3:
• Spindles disappear, delta waves appear
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Stage 4
• Very deep sleep
Stage 4:
• Continuous delta waves• Children produce growth hormone primarily in stages 3 & 4
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REM Sleep
• Rapid eye movements
• EEG resembles waking pattern
• Dreaming occurs
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Sleep Cycles
REM
Stage 4
Stage 3
Stage 2
Stage 1
Awake
1 2 3 4 85 6 7Hour of sleep
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Sleep Disturbances
• Sleep Walking• Nightmares/Night Terrors• Sleep Talking• Narcolepsy• Sleep Apnea• Insomnia• SIDS• REM Behavior Disorder
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Dreaming
• What triggers particular dreams?• Why do we dream?
– Manifest content– Latent content– Activation-synthesis hypothesis
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Controlling Consciousness
• Meditation• Hypnosis
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The Bottom Line
Hypnosis may be no different from other forms of suggestion
(but it makes great theater!)
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Drugs and Alcohol: Substance Use and Abuse
• Substance abuse• Tolerance• Withdrawal symptoms
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The Seven Symptoms of Substance Dependence
1. Tolerance2. Withdrawal3. Larger amounts of substance taken over a longer
period of time than intended4. Unsuccessful efforts or a persistent desire to decrease
or control the substance use
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The Seven Symptoms of Substance Dependence
5. A lot of time spent in obtaining the substance, using it, or recovering from its effects
6. Important work, social, or recreational activities are given up as a result of the substance
7. Despite knowledge of recurrent or ongoing physical or psychological problems caused or exacerbated by the substance, substance use continues
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Depressants: Focus on Alcohol
• Physiological effects of alcohol– Disinhibition
• Psychological effects of alcohol– Inhibitory conflict– Alcohol myopia
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Depressants: Focus on Alcohol
• Chronic abuse– Blackouts– Korsakoff’s syndrome
• Other depressants– Barbiturates
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Stimulants: Focus on Cocaine
• Crack• Other stimulants
– Amphetamines– Caffeine– Nicotine
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Action of Amphetamines on Neurotransmitters
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Narcotic Analgesics: Focus on Heroin
• Narcotic analgesics– Heroin, morphine, codeine, Percodan,
Demerol– Opiates
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Hallucinogens: Focus on LSD
• Hallucinogens– Mescaline, peyote, psilocybin, lysergic acid
diethylamide (LSD), phencydlidine (PCP), Ketamine, marijuana
• A creativity boost?– Flashbacks