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17 Cards in this Set

  • Front
  • Back
a chemical substance that alters perceptions and moods.
psychoactive drug
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.
tolerance
the discomfort and distress that follow discontinuing the use of an addictive drug.
withdrawal
a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued.
physical dependence
a psychological need to use a drug, such as to relieve negative emotions.
psychological dependence
compulsive drug craving and use, despite adverse consequences.
addiction
drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions.
depressants
drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment.
barbiturate
opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety.
opiates
drugs (such as caffeine, nicotine, amphetamines, and the even more powerful cocaine, Ecstasy, and methamphetamine) that excite neural activity and speed up body functions.
stimulants
drugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes.
amphetamines
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.
methamphetamine
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.
Ecstasy (MDMA)
psychedelic (“mind-manifesting”) drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input.
hallucinogens
a powerful hallucinogenic drug; also known as acid (lysergic acid diethylamide).
LSD
an altered state of consciousness reported after a close brush with death (such as through cardiac arrest); often similar to drug-induced hallucinations.
near-death experience
the major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations.
THC