The Neuroscience of Finding Your Lost Keys (image) Salk Institute Share Print E-Mail Caption Salk researchers discovered how the brain keeps track of similar but distinct memories. This microscope image shows neural activity in the dentate gyrus, a subsection of the hippocampus where distinct groups of cells were active during the learning episodes (green) and memory retrieval (red). Credit Image: Courtesy of Wei Deng, Salk Institute for Biological Studies Usage Restrictions News media reproduction to illustrate this story permitted with proper attribution as provided above. For one time use only. Share Print E-Mail 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.