VIP Lights up the Master Cock (IMAGE) Washington University in St. Louis Caption In this image of the master clock in the mouse brain, the nuclei of the clock cells are blue and VIP, a molecule that allows the neurons in the clock to synchronize, is fluorescent green. New work shows that, at high doses, VIP desynchronizes the cells, allowing them to adjust rapidly to changes in the daily schedule. This may help relieve the malaise felt by many shift workers and by travelers who cross time zones. Credit Cristina Mazuski Usage Restrictions Please credit. 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.