Meal Energy Content Affects Fruit Fly Memory (image) Cell Press Share Print E-Mail Caption This image shows appetitive long-term memory forms in fruit flies after presentation of an odorant with sugar. Musso et al. show that, during long-term memory formation, a pair of dopaminergic neurons informs the olfactory memory center about the energy content of the ingested food. Credit Musso et al./Cell Reports 2015 Usage Restrictions Credit Required. Share Print E-Mail 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.