Addiction Medicine Certification Neurobiology of Addiction 3

Question 1

What percentage of addiction vulnerability is estimated to be attributable to genetic factors?

Accepted Answer

40–60%

Answer

10–20%

Answer

80–90%

Answer

Less than 5%

Question 2

Epigenetic changes in addiction refer to:

Accepted Answer

Heritable changes in gene expression without alteration of the underlying DNA sequence

Answer

Permanent mutations in the DNA sequence caused by chronic drug use

Answer

Genetic testing panels used to identify individuals at high addiction risk

Answer

Chromosomal damage resulting from heavy substance use

Question 3

The OPRM1 A118G polymorphism is clinically relevant in addiction medicine because it:

Accepted Answer

Predicts differential response to naltrexone treatment for alcohol use disorder

Answer

Determines severity of benzodiazepine withdrawal

Answer

Identifies individuals at specific risk for stimulant use disorder

Answer

Predicts required buprenorphine maintenance doses

Question 4

Which concept best explains why some individuals can use substances recreationally without developing addiction while others progress to compulsive use?

Accepted Answer

Gene-environment interactions affecting neurobiological vulnerability

Answer

Moral weakness or lack of character in those who become addicted

Answer

Differences in substance purity and adulterant composition

Answer

Insufficient willpower that can be addressed through education alone

Question 5

What is 'incentive salience' in addiction neurobiology?

Accepted Answer

The process by which drug-associated cues acquire powerful motivational significance driving drug-seeking

Answer

The monetary value that addicted individuals assign to drugs

Answer

The therapeutic benefit of medication-assisted treatment over abstinence

Answer

The acute reinforcing effect experienced during initial drug intoxication

Question 6

Long-term potentiation (LTP) in addiction research is significant because it:

Accepted Answer

Represents a cellular mechanism by which drug-associated memories become deeply and persistently encoded

Answer

Explains the mechanism of hepatotoxicity from heavy alcohol use

Answer

Describes how acute opioid euphoria is generated in the VTA

Answer

Is the primary process underlying physical tolerance to CNS depressants

Question 7

Understanding the neurobiology of addiction has most directly informed which clinical approach?

Accepted Answer

Medication-assisted treatment targeting specific neurobiological receptor systems disrupted by addiction

Answer

Abstinence-only treatment programs that discourage all medications

Answer

Confrontational counseling techniques aimed at breaking denial

Answer

Criminal justice deterrents using punishment to reduce substance use