Which statement best captures the idea that addiction can be explained by abnormalities in brain function and biochemistry?

Which statement best captures the idea that addiction can be explained by abnormalities in brain function and biochemistry?

• A. Moral failing
• B. Psychoanalytic theory
• C. Biological theories
• D. Sociocultural factors

Answer: (C)

Addiction as a neurobiological condition focuses on how brain circuits and chemistry drive urges to use drugs. Repeated exposure to substances alters the brain's reward system, especially dopamine pathways, leading to heightened craving and learning that drug use is rewarding. Over time, these neuroadaptations can produce tolerance (needing more to get the same effect) and withdrawal symptoms when not using, which helps explain persistent use. Genetic factors and changes in brain regions involved in decision making, such as the prefrontal cortex, can compromise self-control, making it harder to stop. Medications that influence neurotransmitter systems and brain imaging studies showing altered brain activity provide support for this view. The other perspectives—moral failing, psychoanalytic concepts of unconscious conflicts, or sociocultural explanations—do not specifically frame addiction primarily as brain-based biochemical abnormalities, even though those factors can influence risk. Therefore, the statement that best captures the idea is the biological theories.

Addiction as a neurobiological condition focuses on how brain circuits and chemistry drive urges to use drugs. Repeated exposure to substances alters the brain's reward system, especially dopamine pathways, leading to heightened craving and learning that drug use is rewarding. Over time, these neuroadaptations can produce tolerance (needing more to get the same effect) and withdrawal symptoms when not using, which helps explain persistent use. Genetic factors and changes in brain regions involved in decision making, such as the prefrontal cortex, can compromise self-control, making it harder to stop. Medications that influence neurotransmitter systems and brain imaging studies showing altered brain activity provide support for this view. The other perspectives—moral failing, psychoanalytic concepts of unconscious conflicts, or sociocultural explanations—do not specifically frame addiction primarily as brain-based biochemical abnormalities, even though those factors can influence risk. Therefore, the statement that best captures the idea is the biological theories.