AP Psychology Psychoactive Drugs and Neurotransmitters Quiz 2025

Psychoactive drugs are best defined as substances that

• alter perception and mood

• increase physical strength and endurance

• improve memory formation permanently

• calm the central nervous system without affecting cognition

A drug that slows neural activity and reduces anxiety is classified as a

• stimulant

• hallucinogen

• depressant

• opioid

Alcohol primarily acts as a

• stimulant

• depressant

• hallucinogen

• dissociative drug

Which of the following drugs is most associated with increased dopamine release and feelings of euphoria?

• cocaine

• LSD

• heroin

• alcohol

Drugs such as caffeine, nicotine, and amphetamines are classified as

• depressants

• stimulants

• hallucinogens

• barbiturates

Which drug causes vivid sensory experiences without actual sensory input?

• marijuana

• LSD

• heroin

• alcohol

Heroin and morphine belong to which category of psychoactive drugs?

• stimulants

• hallucinogens

• opioids

• depressants

A person who requires larger doses of a drug to feel the same effects is experiencing

• withdrawal

• tolerance

• dependence

• sensitization

After stopping drug use, a person experiences discomfort and distress. This is known as

• addiction

• withdrawal

• tolerance

• relapse

Marijuana contains THC, which mainly produces which effect?

• increased heart rate and energy

• slowed reaction time and mild hallucinations

• extreme depressant-like behavior

• dissociation from the environment