Myelinated White Matter (IMAGE) Brown University Caption MRI images, taken while children were asleep, showed that infants who were exclusively breastfed for at least three months had enhanced development in key parts of the brain compared to children who were fed formula or a combination of formula and breastmilk. Images show development of myelization by age, left to right. Credit Advanced Baby Imaging Lab / Brown University 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.