Locus Coeruleus Neurons (IMAGE) Picower Institute at MIT Caption LC neurons identified by the marker tyrosine hydroxylase (magenta) engineered via a virus to express ChR2 (green) which allows the neurons to become stimulated upon blue laser activation. Credit Tonegawa Lab/MIT Picower Institute Usage Restrictions with credit 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.