William R. Marrs, University of Washington (image) University of Washington Share Print E-Mail Caption William R. Marrs of the University of Washington Neurobiology and Behavior Program studies cell signals that are similar in action to marijuana-derived chemicals. Credit UW Usage Restrictions For use by news media and educational institutions only. Share Print E-Mail 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.