Calcium Imaging Video (VIDEO) Optica This video is under embargo. Please login to access this video. Caption In-vivo imaging of the neuronal activity in mouse primary visual cortex. Left, high-resolution neuronal map; middle, high-speed neuronal activity recording captured by the two-photon microscope with the adaptive line-excitation scheme; right, extracted neuronal activity traces of representative neurons. Credit Shu Guo and Yunyang Li, University of California, Davis 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.