Hallucinogens
Stimulants
Depressants
Opiates
Tolerance, Withdrawal, and Addiction
100

Produced by hallucinogens, these interfere with the normal consciousness of sensory input.

hallucinations or false perceptions

100

Stimulants increase alertness but reduce this.

Reaction Time

100

This psychoactive drug has antiseptic qualities.

alcohol

100

This flower is the source of natural psychoactive opiates.

poppy

100

These are a set of behaviors that are the opposite of those produced by the drug.

withdrawal

200

Long-term use of this hallucinogen may double your risk of developing schizophrenia.

marijuana

200

This is the most widely-used psychoactive substance.

caffeine

200

Depressants have this effect on the nervous system.

slow down or reduce activity

200

These are our natural opiates.

endorphins or endogenous morphine

200

This drug typically does not produce withdrawal effects.

cocaine

300

Mescaline appears to influence the activity of this neurotransmitter

serotonin

300

The behavioral effects of this drug are similar to that of cocaine.

 amphetamine

300

Chronic alcoholism may damage these parts of the brain.

hippocampus and frontal lobes

300

Opiates became controlled substances around the time of this world event.

World War I

300

Many addictive drugs work on this system in the brain.

dopamine reward system; release of dopamine in the nucleus accumbens

400

This hallucinogen was developed by pharmaceutical researchers investigating headache remedies

LSD

400

This drug provides the unique combination of increasing mental alertness, but relaxing the muscles.

nicotine

400

Depressants boost the activity of this neurotransmitter.

GABA

400

Heroin is synthesized by processing this drug.

morphine

400

When going through a withdrawal, an alcoholic might experience this due to high levels of excitation in the brain.

seizures

500

This hallucinogen was originally used as a veterinary anesthetic

PCP

500

Daily Double: Methylphenidate boosts the activity of these two neurotransmitters  

dopamine and norepinephrine

500

These depressants are prescription drugs used to decrease anxiety and control seizures.

benzodiazepines and barbiturates

500

Opiates are legitimately used for these three reasons.

pain control, cough suppression, and control of diarrhea

500

Tolerance occurs because of the body’s efforts to do this.

maintain homeostasis

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