CPA_RESIZE_UChicago Neuron Image_16x9_01 (IMAGE) DOE/Argonne National Laboratory Caption A connectomic analysis of the brains of mice treated with cocaine shows that dopamine axons undergo two major anatomical remodeling events: 1) axons increase the average number of branches they make (top image), 2) while simultaneously pruning, or removing, existing axons. Credit (Image by Gregg Wildenberg, University of Chicago/Argonne National Laboratory.) 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.