Striatal cholinergic interneurons (IMAGE) University of California - Irvine Caption The picture shows striatal cholinergic interneurons (cell body in yellow) whose neurites (in red) make multiple connections to surrounding neurons. Dopamine through D2R has an important modulatory role on these connections in response to cocaine. Credit R.G. Lewis, UCI School of Medicine 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.