The Neuropsychological Theories of Lashley and Hebb explores the work of a teacher and his student who became the two titans of neuropsychological theory in the twentieth century fifty years after D.O. Hebb published his groundbreaking book, The Organization of Behavior which was inspired by K. S. Lashley. Lashley introduced new theories expanding the understanding of the memory trace throughout the brain. Hebb's book provided the mechanism for Lashley's theory on the immense complexity of the memory process and nearly the entire brain's involvement. Here the author follows the development of Lashley's theory through its presentation by Hebb, along with a modern re-evaluation and comparison of the views of the two men. He also includes nine of Lashley's theoretical papers, and the never before published Vanuxem Lectures delivered at Princeton University in 1952.