If there were a Pantheon of developmental psychologists, scientists who changed the way we study and understand human development, Esther Thelen (1941-2004) would take her her place there, alongside ...

Esther Thelen, 63, a prominent developmental psychologist who studied how the brains of human babies help them move, learn and generally function, died Dec. 29 at a hospital in Bloomington, Ind. She ...