Tau Movement Via Extracellular Space (IMAGE) Columbia University Irving Medical Center Caption Orange indicates where tau protein has traveled from one neuron to another. Credit Laboratory of Karen E. Duff, PhD, Columbia University Medical Center Usage Restrictions with credit to Laboratory of Karen E. Duff, PhD, Columbia University Medical Center 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.