chapter 3: consciousness the two-track...
TRANSCRIPT
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Chapter 3:
Consciousness the
Two-Track Mind
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Chapter 3- Overview
• Understanding Consciousness and
Hypnosis
• Sleep Patterns and Sleep Theories
• Sleep Deprivation, Sleep Disorders, and
Dreams
• Psychoactive Drugs
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Understanding
Consciousness and Hypnosis
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Defining Consciousness
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Defining Consciousness
• Consciousness
–States of consciousness
• Sleep
• Wake
• Altered states
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Defining Consciousness
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Defining Consciousness
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Defining Consciousness
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Defining Consciousness
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Defining Consciousness
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Defining Consciousness
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Defining Consciousness
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Hypnosis
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Hypnosis
• Hypnosis
–Hypnotic induction
–Hypnosis as an altered state?
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Hypnosis
Frequently Asked Questions
About Hypnosis• Can Anyone Experience Hypnosis?
–Postural sway
–Susceptibility
• Can Hypnosis Enhance Recall of
Forgotten Events?
• Can Hypnosis Force People to Act
Against Their Will?
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Hypnosis
Frequently Asked Questions
About Hypnosis
• Can Hypnosis Be Therapeutic?
–Hypnotherapists
–Posthypnotic suggestion
• Can Hypnosis
Alleviate Pain?
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Hypnosis
Explaining the Hypnotized State:
Hypnosis as a Social Phenomenon
• “Good hypnotic subjects”
• Social influence theory
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Hypnosis
Explaining the Hypnotized State:
Hypnosis as Divided Consciousness
• Hilgard
–Dissociation
• Unified account of hypnosis
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Hypnosis
Levels of Analysis for Hypnosis
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Hypnosis
Levels of Analysis for Hypnosis
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Hypnosis
Levels of Analysis for Hypnosis
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Hypnosis
Levels of Analysis for Hypnosis
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Sleep Patterns and Sleep
Theories
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Biological Rhythms and Sleep
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Biological Rhythms and Sleep
Circadian Rhythm
• Circadian rhythm
–24 hour cycle
–Temperature changes
–Circadian rhythm and
age
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Biological Rhythms and Sleep
Sleep Stages
• Sleep
• 90 minute cycles
• REM Sleep versus NonREM Sleep
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Biological Rhythms and Sleep
Sleep Stages
• Measuring Sleeps Activity
–Eye Movements
–Muscle Tension
–EEG Patterns
• Beta Waves
• Alpha Waves
• Delta Waves
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Biological Rhythms and Sleep
Sleep Stages
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Biological Rhythms and Sleep
Sleep Stages
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Biological Rhythms and Sleep
Sleep Stages
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Biological Rhythms and Sleep
Sleep Stages
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Biological Rhythms and Sleep
Sleep Stages
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Biological Rhythms and Sleep
Sleep Stages
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Biological Rhythms and Sleep
Sleep Stages
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Biological Rhythms and Sleep
Sleep Stages
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Biological Rhythms and Sleep
Sleep Stages
• Parts of sleep
–Waking Beta Waves
–Waking Alpha Waves
–NonREM Sleep
–REM Sleep
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Biological Rhythms and Sleep
Sleep Stages
• Parts of sleep
–NonREM Sleep
• NREM-1
–Hallucinations
–Hypnagogic sensations
• NREM-2
–Sleep Spindles
• NREM-3
–Delta waves
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Biological Rhythms and Sleep
Sleep Stages
• Parts of sleep
–REM Sleep• EEG Patterns
• Paradoxical Sleep
• REM Rebound
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Biological Rhythms and Sleep
Sleep Stages:
What Affects Our Sleep Patterns?
• Suprachiasmatic nucleus (SCN)
–melatonin
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Sleep Theories
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Sleep Theories
• Sleep theories
–Sleep protects
–Sleeps helps recuperation
–Memory storage
–Sleep and creative thinking
–Sleep and growth
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Sleep Deprivation, Sleep
Disorders, and Dreams
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Sleep Deprivation and Sleep
Disorders
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
• US Navy and NIH studies
• Age and sleep loss
• Chronic sleep loss
• Springs and fall
time changes
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss:
Major Sleep Disorders
• Sleep disorders
–Insomnia
–Narcolepsy
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Sleep Deprivation and Sleep Disorders
Effects of Sleep Loss:
Major Sleep Disorders
• Sleep disorders
–Sleep apnea
–Night terrors
–Sleepwalking/
sleep talking
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Dreams
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Dreams
What We Dream
• Dreams
–Manifest content
–Latent content
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Dreams
Why We Dream
• To satisfy our own wishes
• To file away memories
• To develop/preserve neural pathways
• To make sense of neural static
• To reflect cognitive development
–REM rebound
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Dreams
Why We Dream
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Psychoactive Drugs
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Tolerance and Addiction
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Tolerance and Addiction
• Substance Use Disorder
• Psychoactive Drugs
• Tolerance
• Addiction
• Withdrawal
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Types of Psychoactive Drugs
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Types of Psychoactive Drugs
• Three types of psychoactive drugs
–Depressants
–Stimulants
–Hallucinogens
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Types of Psychoactive Drugs
Depressants
• Depressants
–Alcohol
–Barbiturates (tranquilizers)
–Opiates
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Types of Psychoactive Drugs
Depressants:
Alcohol
• Disinhibition
• Slowed neural processing
• Memory disruption
• Reduced self-awareness and self-
control
• Expectancy effects
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Types of Psychoactive Drugs
Depressants:
Barbiturates and Opiates
• Barbiturate (tranquilizers)
• Opiates
–Endorphins
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Types of Psychoactive Drugs
Stimulants
• Stimulants
–Caffeine
–Nicotine
–Amphetamines
–Cocaine - crack
–Methamphetamine
–Ecstasy (MDMA)
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Types of Psychoactive Drugs
Stimulants:
Nicotine
• Nicotine
–Usage
–Tolerance
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Types of Psychoactive Drugs
Stimulants:
Cocaine
• Cocaine
–Neurotransmitters
–Crack
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Types of Psychoactive Drugs
Stimulants:
Cocaine
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Types of Psychoactive Drugs
Stimulants:
Cocaine
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Types of Psychoactive Drugs
Stimulants:
Cocaine
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Types of Psychoactive Drugs
Stimulants:
Cocaine
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Types of Psychoactive Drugs
Stimulants:
Methamphetamine
• Methamphetamine
–Amphetamine
–Dopamine
–Effects and
Aftereffects
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Types of Psychoactive Drugs
Stimulants:
Ecstasy (MDMA)
• Ecstasy
–MDMA
(methylenedioxymethamphetamine)
–Dopamine and Serotonin
–“Club Drug”
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Types of Psychoactive Drugs
Hallucinogens
• Hallucinogens (psychedelics)
–LSD (lysergic acid diethylamide)
• Acid
• Near death
experience
–Marijuana
• THC
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The End
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Definition
Slides
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Consciousness
= an awareness of ourselves and our
environment.
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Hypnosis
= a social interaction in which one person
(the subject) responds to another person’s
(the hypnotist’s) suggestions that certain
perceptions, feelings, thoughts, or
behaviors will spontaneously occur.
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Posthypnotic Suggestion
= a suggestion, made during a hypnosis
session, to be carried out after the subject
is no longer hypnotized; used by some
clinicians to help control undesired
symptoms and behaviors.
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Dissociation
= a split in consciousness, which allows
some thoughts and behaviors to occur
simultaneously with others.
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Circadian Rhythm
= the biological clock; regular bodily rhythms
(for example, of temperature and
wakefulness) that occur on a 24-hour
cycle.
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REM Sleep
= rapid eye movement sleep; a recurring
sleep state during which vivid dreams
commonly occur. Also known as
paradoxical sleep, because the muscles
are relaxed (except for minor twitches) but
other body systems are active.
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Alpha Waves
= the relatively slow brain waves of a
relaxed, awake state.
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Sleep
= periodic, natural loss of consciousness –
as distinct from unconsciousness resulting
from a coma, general anesthesia, or
hibernation.
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Hallucinations
= false sensory experiences, such as seeing
something in the absence of an external
visual stimulus.
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Delta Waves
= the large, slow brain waves associated
with deep sleep.
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NREM Sleep
= non-rapid eye movement sleep;
encompasses all sleep stages except for
REM sleep.
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Suprachiasmatic Nucleus (SCN)
= a pair of cell clusters in the hypothalamus
that controls circadian rhythm. In
response to light, the SCN causes the
pineal gland to adjust melatonin
production, thus modifying our feelings of
sleepiness.
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Insomnia
= recurring problems in falling or staying
asleep.
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Narcolepsy
= a sleep disorder characterized by
uncontrollable sleep attacks. The sufferer
may lapse directly into REM sleep, often at
inopportune times.
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Sleep Apnea
= a sleep disorder characterized by
temporary cessations of breathing during
sleep and repeated momentary
awakenings.
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Night Terrors
= a sleep disorder characterized by high
arousal and an appearance of being
terrified; unlike nightmares, night terrors
occur during NREM-3 sleep, within two or
three hours of falling asleep, and are
seldom remembered.
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Dream
= a sequence of images, emotions, and
thoughts passing through a sleeping
person’s mind. Dreams are notable for
their hallucinatory imagery, discontinuities,
and incongruities, and for the dreamer’s
delusional acceptance of the content and
later difficulties remembering it.
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Manifest Content
= according to Freud, the remembered story
line of a dream (as distinct from its latent,
or hidden, content).
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Latent Content
= according to Freud, the underlying
meaning of a dream (as distinct from its
manifest content).
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REM Rebound
= the tendency for REM sleep to increase
following REM sleep deprivation (created
by repeated awakenings during REM
sleep).
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Substance Use Disorder
= continued substance craving and use
despite significant life disruption and/or
physical risk.
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Psychoactive Drug
= a chemical substance that alters
perceptions and moods.
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Tolerance
= the diminishing effect with regular use of
the same dose of a drug, requiring the
user to take larger and larger doses before
experiencing the drug’s effect.
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Addiction
= compulsive craving of drugs or certain
behaviors (such as gambling) despite
known adverse consequences.
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Withdrawal
= the discomfort and distress that follow
discontinuing an addictive drug or
behavior.
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Depressants
= drugs (such as alcohol, barbiturates, and
opiates) that reduce neural activity and
slow body functions.
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Alcohol Use Disorder
= (popularly known as alcoholism). Alcohol
use marked by tolerance, withdrawal, and
a drive to continue problematic use.
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Barbiturates
= drugs that depress central nervous system
activity, reducing anxiety but impairing
memory and judgment.
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Opiates
= opium and its derivatives, such as
morphine and heroin; they depress neural
activity, temporarily lessening pain and
anxiety.
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Stimulants
= drugs (such as caffeine, nicotine, and the
more powerful amphetamines, cocaine,
and Ecstasy) that excite neural activity and
speed up body functions.
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Amphetamines
= drugs that stimulate neural activity,
causing speeded-up body functions and
associated energy and mood changes.
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Nicotine
= a stimulating and highly addictive
psychoactive drug in tobacco.
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Cocaine
= a powerful and addictive stimulant, derived
from the coca plant, producing temporarily
increased alertness and euphoria.
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Methamphetamine
= a powerfully addictive drug that stimulates
the central nervous system, with speeded-
up body functions and associated energy
and mood changes; over time, appears to
reduce baseline dopamine levels.
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Ecstasy (MDMA)
= a synthetic stimulant and mild
hallucinogen. Produces euphoria and
social intimacy, but with short-term health
risks and longer-term harm to serotonin-
producing neurons and to mood and
cognition.
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Hallucinogens
= psychedelic (“mind-manifesting”) drugs,
such as LSD, that distort perceptions and
evoke sensory images in the absence of
sensory input.
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LSD
= a powerful hallucinogenic drug; also
known as acid (lysergic acid diethylamide).
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Near-Death Experience
= an altered state of consciousness reported
after a close brush with death (such as by
cardiac arrest); often similar to drug-
induced hallucinations.
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THC
= the major active ingredient in marijuana;
triggers a variety of effects, including mild
hallucinations.