Which scientist identified 52 distinct areas of the human cerebral cortex in a 1909 map?

Korbinian Brodmann identified 52 distinct areas of the human cerebral cortex in a 1909 map.

Brodmann was a German neurologist and anatomist who classified cortical regions by their microscopic cellular organization, a method known as cytoarchitecture. He noticed that the size, arrangement, and layering of neurons differed across the cortex, suggesting that these regions might perform different functions.

His numbered map became one of the most influential reference systems in neuroscience. Brodmann areas 4 and 6 are associated with motor regions, while areas 17, 18, and 19 are commonly linked with visual processing. Area numbers are anatomical labels, not simple one-to-one descriptions of mental abilities.

Modern brain imaging and neuroanatomy have refined many boundaries, and some functions overlap several areas. Nevertheless, Brodmann’s numbering remains widely used in textbooks, research papers, and clinical discussions.