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Fundamentals of Addiction Science

Addiction Science

An introductory overview of how substances affect the brain and behavior.

biology health psychology

10 Questions Easy Ages 14+ Jul 28, 2026

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About this Study Set

This study set covers Addiction Science through 10 practice questions. An introductory overview of how substances affect the brain and behavior. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 10 questions from the Fundamentals of Addiction Science study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which primary neurotransmitter is most strongly associated with the brain's reward system and the reinforcement of addictive behaviors?

A Acetylcholine
B Dopamine
C Serotonin
D GABA

2 What is the term used to describe the condition where a person needs increasingly larger doses of a substance to achieve the same effect?

A Tolerance
B Withdrawal
C Relapse
D Dependence

3 Which part of the brain is primarily responsible for executive functions like decision-making, impulse control, and planning, which are often impaired by chronic substance use?

A Cerebellum
B Brain stem
C Prefrontal cortex
D Occipital lobe

4 What is the term for the set of negative physical and mental symptoms that occur when a person stops using a substance they have become dependent on?

A Tolerance
B Withdrawal
C Homeostasis
D Tolerance

5 In addiction science, what does the term 'psychoactive' mean?

A A substance that changes brain function and alters perception or mood
B A substance that is only found in illegal drugs
C A medicine used to treat physical pain only
D A substance that has no effect on the nervous system

6 Which of these is a common physiological effect of stimulant drugs?

A Lowered heart rate
B Increased alertness and energy
C Decreased blood pressure
D Enhanced sleep patterns

7 What is the primary function of the blood-brain barrier in the context of addiction?

A To produce dopamine
B To protect the brain from harmful substances in the blood
C To store memories of drug experiences
D To regulate body temperature

8 Which of the following is considered a 'depressant' substance?

A Caffeine
B Nicotine
C Alcohol
D Amphetamines

9 Chronic substance use disorder is best classified by medical professionals as a:

A Lack of willpower
B Chronic, relapsing brain disease
C Behavioral choice
D Temporary moral failing

10 How do opioids interact with the brain's pain-signaling pathways?

A They increase the number of pain receptors
B They bind to opioid receptors to block pain signals
C They destroy nerve endings
D They increase the production of endorphins

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