Psychology 1000 Study Guide - Quiz Guide: Stimulant Psychosis, Hypnotic Induction, Drug Tolerance

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Facts about Drug Addiction and Dependence
Drug tolerance does not always lead to significant withdrawal at typical doses
Substance dependence can occur even without tolerance or withdrawal
Physiological dependence is not the major cause of drug addiction
Depressants
Decrease nervous system activity
Alcohol most widely used recreational drug in numerous countries
o Increases activity of gamma-aminobutyric acid (GABA)
o Alcohol myopia shortsightedness in thinking caused by inability to pay
attention
Barbiturates (sleeping pills) and Tranquilizers (anti-anxiety drugs) used as sedatives
and relaxants
o Depress the nervous system by increasing activity of inhibitory
neurotransmitters
Stimulants
Increase neural firing and arouse the nervous system
Amphetamines increase dopamine and norepinephrine activity
o Amphetamine psychosis schizophrenia-like hallucinations and delusions that
ouhe the ai’s dopaie atiity is atifiially ieased fa eyod
normal levels by heavy amphetamine use
o Ecstasy primarily alters serotonin functioning by causing release and blocking
reuptake of it
Cocaine increases activity of norepinephrine and dopamine by blocking reuptake
Other Drugs
Opiates (morphine, codeine, heroin) are drugs derived from opium
o Bind to and stimulate receptors normally activated by endorphins
o Relieve pain and cause intense euphoria
Hallucinogens (LSD) powerful mind altering drugs that produce hallucinations
Marijuana THC binds to receptors on neurons throughout the brain
Hypnosis
Hypnosis state of heightened suggestibility in which some people are able to
experience imagined test suggestions as if they were real
Hypnotic induction process by which one person leads another person into hypnosis
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PSYCH 1000 Full Course Notes
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PSYCH 1000 Full Course Notes
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