Neural Basis of Alertness Revealed (IMAGE) NIH/National Institute of Mental Health Caption NIH-funded scientists revealed the types of neurons supporting alertness, using a molecular method called MultiMAP in transparent larval zebrafish. Multiple types of neurons communicate by secreting the same major chemical messengers: serotonin (red), dopamine and norepinephrine (yellow) and acetylcholine (cyan). video: <a target="_blank"href="https://www.youtube.com/watch?v=ZPpJc0koWkM&feature=youtu.be">https://youtu.be/ZPpJc0koWkM</a> Credit Karl Deisseroth, M.D., Ph.D., Stanford 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.