LSD Bound to Receptor (image) University of North Carolina Health Care Share Print E-Mail Caption Center: a molecule of LSD bound to a larger serotonin receptor. The 'lid' that keeps LSD bound so long is the orange bar running through the center. Credit Lab of Bryan Roth, UNC School of Medicine Usage Restrictions credit properly 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.