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PSYCHOACTIVE DRUG EFFECTS (depressants (alcohol (decreases dopamine lvls,…
PSYCHOACTIVE DRUG EFFECTS
depressants
alcohol
decreases dopamine lvls
dizziness, slurred speech, impaired judgement, high doses -> respiratory depression and death
barbiturates
inhibits neural arousal centers
decreases anxiety, increases relaxation; high doses result in respiratory depression and death; addictive and dangerous when mixed with alcohol
tranquilizers
inhibits neural arousal centers
decreases anxiety, increases relaxation, high doses result in respiratory depression and death, addictive and dangerous when mixed with alcohol
narcotics
activates receptors for endogenous, endorphins
induces relaxation and euphoria, relieves pain, impaired cognitive ability, sweating, nausea, respiratory depression, highly addictive
stimulates
caffeine
increases HR, constricts blood vessels, reduces lvls of adenosine - neurochemical regulator of norepinephrine release
can lead to irritability, anxiety, insomnia
amphetamines
increases body temperature, HR; increases production of dopamine and norepinephrine
can be addictive, feelings of euphoria, high doses -> motor disfunction
cocaine
stimulates HR, blood pressure; increases dopamine, serotonin, norepinephrine
users feel their mental + social abilities; can be highly addictive
nicotine
stimulates acetylcholine transmission, inreases HR
depressant behavioral effects, decreasing appetite while increasing HR, respiration, can cause euphoria, dizziness
distort sensory pereption
hallucinogens (LSD, marijuana)
may increase serotonin lvls
induces sensory synthesis in which stimuli from 1 sense produce sensory effects in other modalities (vision)