Addiction, 2e (IMAGE) Cold Spring Harbor Laboratory Press Caption iDISCO (immunolabeling-enabled imaging of solvent-cleared organs) clearing of mouse brain with whole-brain c-FOS mapping. To generate the image, iDISCO brain-clearing and light-sheet microscopy were utilized to visualize white matter tracks (green) and Fos immunoreactivity (red). Credit Image generated by Alexander C.W. Smith, Icahn School of Medicine at Mount Sinai. 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.