Rat Neurons Growing in a Culture Dish (IMAGE) University of California - Santa Barbara Caption Image of rat neurons growing in a culture dish. The purple spheres are the cell nuclei and the red corresponds to the localization of phosphorylated tau. Credit Jack Reifert, UCSB Usage Restrictions None License Licensed 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.