Neuron Hub Maps (IMAGE) Indiana University Caption Non-gray circles and their connections represent 80, 70 and 60 percent (from top to bottom) of all outgoing traffic within the sampled section of a cortical region. Credit Indiana University 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.