Psych 347 Exam 2026 Questions and
Answers Graded A+
Which of the following is not necessarily a part of the cycle of pathological drug
use that can lead to addiction? - Correct answer-inability to show abstinence from
the drug
The _______ model of addiction is based on the idea that brain dysfunction occurs
as a result of repeated drug exposure. - Correct answer-disease
Which of the following best represents the involvement of epigenetics in the
progression to addiction? - Correct answer-Environmental stimuli → acute drug
exposure → epigenetic changes → modified gene expression → repeated drug
exposure/addiction
In general, the _______ of a substance is positively correlated with _______. -
Correct answer-addiction potential; its speed of onset
Dopaminergic activity in the mesolimbic dopamine pathway is essential for drug
reward in the case of _______ but not in the case of _______. - Correct answer-
cocaine; heroin
©COPYRIGHT 2026, ALL RIGHTS RESERVED 1
, The DSM-5 identifies ______ as a maladaptive pattern of substance use that has
continued for at least 12 months and that has led to significant impairment or
distress, in combination with two or more additional symptoms (including drug
craving, tolerance, withdrawal, or difficulty quitting - Correct answer-substance
use disorder
Most abused drugs act as _____, meaning that consuming the drug strengthens the
probability of making whatever preceding behavior was performed to get the drug
happen again in the future - Correct answer-positive reinforcers
The statement "addiction is a heritable disorder" means that - Correct answer-the
susceptibility to addiction is influenced by a large number of genes.
Changes in which two neurotransmitter systems are most likely involved in the
hyperexcitability seen during withdrawal from chronic alcohol? - Correct answer-
GABA and glutamate
Disulfiram makes consumption of alcohol unpleasant because it - Correct answer-
blocks the conversion of acetaldehyde to acetic acid
Acute alcohol _______ the effectiveness of glutamate at NMDA receptors and
_______ glutamate release - Correct answer-reduces; reduces
©COPYRIGHT 2026, ALL RIGHTS RESERVED 2
Answers Graded A+
Which of the following is not necessarily a part of the cycle of pathological drug
use that can lead to addiction? - Correct answer-inability to show abstinence from
the drug
The _______ model of addiction is based on the idea that brain dysfunction occurs
as a result of repeated drug exposure. - Correct answer-disease
Which of the following best represents the involvement of epigenetics in the
progression to addiction? - Correct answer-Environmental stimuli → acute drug
exposure → epigenetic changes → modified gene expression → repeated drug
exposure/addiction
In general, the _______ of a substance is positively correlated with _______. -
Correct answer-addiction potential; its speed of onset
Dopaminergic activity in the mesolimbic dopamine pathway is essential for drug
reward in the case of _______ but not in the case of _______. - Correct answer-
cocaine; heroin
©COPYRIGHT 2026, ALL RIGHTS RESERVED 1
, The DSM-5 identifies ______ as a maladaptive pattern of substance use that has
continued for at least 12 months and that has led to significant impairment or
distress, in combination with two or more additional symptoms (including drug
craving, tolerance, withdrawal, or difficulty quitting - Correct answer-substance
use disorder
Most abused drugs act as _____, meaning that consuming the drug strengthens the
probability of making whatever preceding behavior was performed to get the drug
happen again in the future - Correct answer-positive reinforcers
The statement "addiction is a heritable disorder" means that - Correct answer-the
susceptibility to addiction is influenced by a large number of genes.
Changes in which two neurotransmitter systems are most likely involved in the
hyperexcitability seen during withdrawal from chronic alcohol? - Correct answer-
GABA and glutamate
Disulfiram makes consumption of alcohol unpleasant because it - Correct answer-
blocks the conversion of acetaldehyde to acetic acid
Acute alcohol _______ the effectiveness of glutamate at NMDA receptors and
_______ glutamate release - Correct answer-reduces; reduces
©COPYRIGHT 2026, ALL RIGHTS RESERVED 2
