All the Way through the Cortex (IMAGE) Picower Institute at MIT Caption Three-dimensional rendering of a sequence of 450 lateral three-photon images acquired with 2-μm increment from the visual cortex (layer 1 on the left to the subplate on the right). Green color represents GCaMP6s signal, and magenta color represents label free THG signal generated in the blood vessels and myelin fibers in the white matter. Scale bar, 100 μm. Credit Murat Yildirim <em>et. al.</em> 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.