Image Depicting an Adolescent Brain (IMAGE) Children's Hospital Los Angeles Caption The cortex, visible here as folds, forms the outer layer of the brain and is important for information processing. The study led by Dr. Elizabeth Sowell of Children's Hospital Los Angeles shows that the cortex is adversely affected by high risk of lead exposure in children from lower income families. Image courtesy of Eric Kan of CHLA. Credit Eric Kan of Children's Hospital Los Angeles Usage Restrictions Image may be used only in context of reporting this story 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.