Fear Memory Image (IMAGE) Boston University Caption In this image, the red cells are a fear memory. After artificially activating another, more pleasant memory, those red cells turned into the blue cells, which represent the altered, less powerful fear memory. This demonstrates that the original memory has been altered by their memory manipulation technique, according to lead study author Stephanie Grella. Credit Photo by Stephanie Grella. Usage Restrictions Republishing permitted with photo credit. 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.