Vasotocin Neuron (IMAGE) University of California - San Diego Caption A vasotocin neuron (green) expressing Fos, a marker of neuronal activity (orange-red, center). Credit Photo micrograph by James Goodson Usage Restrictions None. Note to editors: high-resolution versions available. 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.