(IMAGE) Université de Genève Caption Neurons in drosophila brain marked with green fluorescent protein. The most colored parts highlight the mushroom bodies, a key center for sleep regulation. Credit © UNIGE 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.