Inhibitory neurons (IMAGE) Picower Institute at MIT Caption Researchers observed the activity of PV neurons (left) and SOM neurons (right) in the visual cortex to understand the emergence of visual recognition memory. Credit Daniel Montgomery/MIT Picower Institute Usage Restrictions with credit License Licensed 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.