For decades, dopamine has been celebrated in neuroscience as the quintessential "reward molecule"—a chemical herald of pleasure, motivation, and reinforcement. In popular understanding, higher ...

For decades, Parkinson’s disease has been framed as a simple story of dwindling dopamine, a slow erosion of the brain’s movement signal. A wave of new research is now overturning that picture, ...

You won’t get very far without dopamine. That is the problem at the heart of Parkinson’s disease; the death of dopamine-producing cells eventually leaves many patients unable to walk. Too much ...