Figure 1 (IMAGE) Institute for Basic Science Caption One of the two immobilized mice is presented to the subject mouse in random order. The subject mouse learns to recognize the presented mouse and associates it with the availability of water reward. Credit Institute for Basic Science Usage Restrictions Attribution Required License Original 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.