luminance network (IMAGE) Johannes Gutenberg Universitaet Mainz Caption In the network illustrated here, the information on luminance captured by L3 cells (green) is pooled by Dm neurons (red) in order to correct the signals provided by L2 cells (blue). Tm9 cells (cyan) bring this information together in order to generate stable contrasts. Credit ill./©: Marion Silies Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.