Brain Expansion Compared (IMAGE) Washington University School of Medicine Caption Areas of expansion in the human cortex during infancy and childhood, top, closely match areas of change in the human brain when compared to the brains of apes and monkeys. Yellow areas expanded the most, followed by orange, red, blue and light blue areas. Credit Washington University School of Medicine in St. Louis. Usage Restrictions Embargoed from use until July 12 at 3 p.m. EDT 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.