PSD-95 in action (image) Rockefeller University Press Caption More PSD-95 means bigger spines (top), and multiple axon connections. Credit Nikonenko, I., et al. 2008. J. Cell Biol. doi:10.1083/jcb.200805132. Usage Restrictions None 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.