Andreas Keller, Rockefeller University (IMAGE) Rockefeller University Caption Andreas Keller in the lab surrounded by vials of odors he and his colleagues used to measure volunteers' ability to distinguish between scents. Credit Zach Veilleux / The Rockefeller 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.