This drawing shows the regions of the human cerebral cortex as delineated by Korvinian Brodmann on the basis of cytoarchitecture. Creative Commons Attribution 2.5 Generic license, modified by User:Looie496, original artist unknown but probably Brodmann - This image was made by modifying a scan of p 288 of the book “Anatomy of the Nervous System”, by Stephen Walter Ranson, W. B. Saunders, 1920.