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Module 1.3b

®
AP Science Practice Check Your Understanding

Examine the Concept Apply the Concept
▶ ▶How would you explain each category of psychoactive drugs ▶ ▶“How curiously [pleasure] is related to what is thought to
to a classmate? be its opposite, pain! . . . Wherever the one is found, the other
follows up behind” (Plato, Phaedo, fourth century b.c.e.). How
does this pleasure–pain description apply to the repeated use of
psychoactive drugs?
Answers to the Examine the Concept questions can be found in Appendix C at the end of the book.
Distributed by Bedford, Freeman & Worth Publishers. Not for redistribution.

Module 1.3b REVIEW
Copyright © Bedford, Freeman & Worth Publishers.

1.3-5 What are substance use disorders? 1.3-7 What are stimulants, and what are their
effects?
• People with a substance use disorder engage in continued
substance use despite its significant life disruption. • Stimulants excite neural activity and speed up body func-
• Psychoactive drugs alter perceptions and moods. tions, triggering energy and mood changes. Stimulants
can be highly addictive.
1.3-6 What are depressants, and what are their
effects? 1.3-8 What are hallucinogens, and what are their
effects?
• Depressants dampen neural activity and slow body functions.
• Hallucinogens distort perceptions and evoke hallucinations
(sensory images in the absence of sensory input), some of
which resemble the altered consciousness of near-death
experiences.

®
AP Practice Multiple Choice Questions

1. Which of the following represents drug tolerance? Reported Effects of Ingested Substance
a. Hans has grown to accept the fact that his partner
likes to have a beer with dinner, even though he 80%
personally does not approve of the use 70
of alcohol. 60
b. José often wakes up with a headache that lasts until
he has his morning cup of coffee. Frequency 50
c. Pierre enjoys the effect of marijuana and is now using 40
the drug several times a week. 30
d. Jacob had to increase the dosage of his pain 20
medication when the old dosage no longer
effectively controlled the pain from his chronic back 10
condition. 0
Slow heart Relaxation Tiredness
rate
2. One hundred people reported the most impactful effect
of a substance they recently ingested. Which classification Substance’s effect
of drug is most likely represented in the bar graph? a. Stimulant c. Hallucinogen
b. Depressant d. Tolerance

The Neuron and Neural Firing: Substance Use Disorders and Psychoactive Drugs Module 1.3b 53

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