Which statement below best describes how psychoactive drugs influence the brain's reward centre?
A) All drugs stimulate the brain's reward centre directly.
B) All drugs stimulate the brain's reward centre indirectly.
C) Cocaine and amphetamines stimulate the brain's reward centre indirectly; other drugs stimulate it directly.
D) Cocaine and amphetamines stimulate the brain's reward centre directly; other drugs stimulate it indirectly.

Question

Quizplus · Accepted Answer

Cocaine and amphetamines are known as direct-acting drugs, as they stimulate the release of dopamine directly in the brain's reward centre. Other drugs, such as heroin and alcohol, are known as indirect-acting drugs, as they affect the brain's reward centre through different mechanisms, such as increasing the release of endorphins or enhancing the effects of GABA. Therefore, option D is the correct statement.

Which Statement Below Best Describes How Psychoactive Drugs Influence the Brain's