Neural Tube Formation (IMAGE) Society for Neuroscience Caption Neural tube formation was compromised in frog embryos treated with the widely-used antiepileptic drug valproic acid and led to defects. Credit Sequerra et al., JNeurosci (2018) Usage Restrictions None 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.