Microcircuitry in the Brain (IMAGE) University of South Carolina Caption The mu-opioid receptor role in the hippocampal circuit is shown. Credit Adapted from the journal <em>Neuropharmacology</em>. Usage Restrictions Credit the journal <em>Neuropharmacology</em>. 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.