Brains (IMAGE) University of California - San Diego Caption Brain cortical organoids are examined under an electronic microscope. Muotri recently published his method for making such organoids, which he says are so realistic that they "rival the complexity of the fetal brain's neural network." Credit UC San Diego Health Sciences Usage Restrictions Use photo credit License Original 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.