A Circuit for Change (2 of 2) (image) RIKEN Caption Imaging of cell activity (green) across the hippocampus reveals CA2 (red) can detect small changes in a familiar context. Wintzer et al. Journal Of Neuroscience 2014. Credit RIKEN Usage Restrictions UNDER EMBARGO UNTIL: 5pm EST/10pm GMT on Tuesday 18 February 2014; 7am JST on Wednesday 19 February 2014 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.