Question

which chemical is released by brain cells along an activated reward pathway? (1 point)
cocaine
methamphetamine
heroin
dopamine

Explanation:

Dopamine is a neurotransmitter released by brain cells in the reward - pathway. Cocaine, methamphetamine, and heroin are drugs that can affect the reward - pathway but are not the chemical released by brain cells along the activated reward - pathway itself.

Answer:

dopamine