Psychoactive Drugs

By: Sean Stranahan and Sam Busby

Stimulants

Psychoactive drugs that induce temporary improvements in either mental or physical functions or both.

Depressants

a drug that lowers neurotransmission levels, which is to depress or reduce arousal or stimulation, in various areas of the brain.

Opiates

substances that act on the nervous system in a similar way to morphine and codeine.

Psychedelic Drugs

substance is a psychoactive drug whose primary action is to alter cognition and perception, typically by agonising serotonin receptors.

Tolerance

A person's diminished response to a drug, which occurs when the drug is used repeatedly and the body adapts to the continued presence of the drug.

Withdrawl

the group of symptoms that occur upon the abrupt discontinuation or decrease in intake ofmedications or recreational drugs.

Addiction

a chronic, relapsing brain disease that is characterized by compulsive drug seeking and use, despite harmful consequences.

Dependence

An adaptive state that develops from repeated drug administration