Figure 2 (IMAGE) Institute for Basic Science Caption When neuroinhibitor muscimol is injected into the dorsal CA1 region of the hippocampus, the subject mouse becomes unable to distinguish the presented mice. However, when the same experiment was performed while presenting odor stimuli unrelated to social activity, this phenomenon was not observed. 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.