Which discovery most undermined the idea that addiction could be defined in terms of the development of withdrawal symptoms?
A) The cessation of certain drugs brings on intense feelings of dysphoria.
B) The stimulation of reward pathways in the brain can be habit-forming.
C) People remain addicted even after physical withdrawal symptoms subside.
D) The distinction between physical and psychological dependence is difficult to justify.

Question

Quizplus · Accepted Answer

The discovery that the stimulation of reward pathways in the brain can be habit-forming undermined the idea that addiction could be defined in terms of the development of withdrawal symptoms because it showed that addiction is caused by the brain's response to drugs or other stimuli rather than just dependence on a substance. This indicates that addiction is a complex issue involving multiple factors, including psychological and social factors, which cannot be reduced to physical withdrawal symptoms alone.

Which Discovery Most Undermined the Idea That Addiction Could Be