Barch and Luby Analyze Images (image) Washington University School of Medicine Share Print E-Mail Caption Deanna M. Barch, PhD, (left) and Joan L. Luby, MD, examine brain images for differences in brain tissue between children depressed as preschoolers and those who were not. They have linked preschool depression with less gray matter and the thinning of that tissue in the brain's cortex. Credit Robert Boston Usage Restrictions None Share Print E-Mail 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.