Science image (IMAGE) Salk Institute Caption Astrocytes (green) and neurons (magenta) closely interact in the developing cortex and signal to each other to ensure correct development. Credit Salk Institute. Usage Restrictions with related coverage and 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.