3D video of dendritic spines (VIDEO) Optica This video is under embargo. Please login to access this video. Caption Researchers used their 3D-2PE-STED microscope to image the brain of a living mouse. Zooming in on part of a dendrite reveals the 3D structure of an individual spine. Credit Joerg Bewersdorf, Yale School of Medicine Usage Restrictions None 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.