About Odessa Regional Medical Center Odessa Regional Medical Center is a Hospital in Odessa, TX.
The most important reward pathway in brain is the mesolimbic dopamine system. This circuit (VTA-NAc) is a key detector of a rewarding stimulus.
Rewarding experiences trigger the release of the brain chemical dopamine, telling the brain do it again.. What makes permanent recovery difficult is drug-induced change that creates lasting memories linking the drug to a pleasurable reward. Recent research shows that addiction involves many of the same brain circuits that govern learning and memory.