Dopamine neuron (IMAGE) Northwestern University Caption Microscopy image of a dopamine neuron genetic subtype that displays activity correlated to locomotion but no response to rewards. Credit Maite Azcorra and Zachary Gaertner/Northwestern University Usage Restrictions Add credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.