A Mouse inside the Experimental Chamber (IMAGE) University of Pittsburgh Caption By pushing a lever inside the chamber, the mouse receives a dose of cocaine through a venous catheter on its back. Credit Lauren DePoy, Ph.D. 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.