(IMAGE) Université de Genève Caption More dopaminergic neurons in the adult Drosophila brain survive in control flies (left) than in flies mutant for the circadian cycle (right). Credit © Lou Duret Usage Restrictions none 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.