Dopamine helps reinforce behaviors by signaling reward, motivation, and learning in the brain. Many addictive substances produce unusually strong or rapid dopamine responses, strengthening associations between substance use and reward. With repeated exposure, brain circuits can adapt, contributing to cravings and compulsive use. Dopamine is therefore important in addiction, but it is not the only neurotransmitter involved.
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies.
Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style