A Garden of Axon Initial Segments (IMAGE) Netherlands Institute for Neuroscience - KNAW Caption Different lengths of the green signals means different triggers sites. Credit Netherlands Institute for Neuroscience Usage Restrictions The image may only be used with appropriate credit. All rights reserved. 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.