Psychoactive drugs

Psychoactive drugs

chemical substances that alter perception/mood

Physical dependence

physiological need for drug (withdrawal)

Psychological dependence

bad mood if no drug

Discomfort/stress after discontinued use

Withdrawal

Caffeine

Cocaine

Amphetamines

Stimulants

Methamphetamine

Nicotine

Ectasy

Stimulants

Barbiturates

Opiates/morphine

Alchohol

Heroine

Depressants

what do stimulants do?

excite neural activity/speed body functions

what do depressants do?

reduce neural activity/slow body functions

Agonists

activate receptors to produce a biological response

Antagonists

blocks/inhibits receptors to prevent response

Reuptake inhibitors

prevent neurotransmitter reuptake (SSRIs)

SSRI (selective srotonin reuptake inhibitor)

blocks reuptake of serotonin to improve mood and reduce anxiety/depression