Xana Waughman (IMAGE) Allen Institute Caption Allen Institute neuroscientist Xana Waughman describes recordings of mouse neuron activity — in a technique known as 2-photon microscopy, scientists are able to capture neurons switching on and off through a fluorescent sensor engineered to light up with cellular activity. This technique is one of those used in OpenScope, a shared brain observatory program at the Allen Institute. Credit Allen Institute / Erik Dinnel 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.