Human induced motor neurons (IMAGE) Keck School of Medicine of USC Caption Human induced motor neurons that are labeled with a motor neuron marker HB9 in green and a neuron marker TUJ1 in purple. Credit Ichida Lab Usage Restrictions none 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.