Three Regions (image) Picower Institute at MIT Share Print E-Mail Caption Three brain regions, the the prefrontal cortex (PFC), the frontal eye fields (FEF), and the lateral intraparietal area (LIP), share feedback and feedforward signals in visual working memory. Credit Pinotsis et. al. Usage Restrictions with credit 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.