All of the CEREBRAL CORTEX is organized in layers: the NEOCORTEX has six layers, the JUXTALLOCORTEX four or five and the ALLOCORTEX three. The six layers of the neocortex (which makes up about 90% of the cortical mass) have distinct compositions and...

Many response properties of neurons in the CEREBRAL CORTEX (such as orientation selectivity) show an arrangement such that all cells perpendicular to the cortical surface share the same specificity—this is termed an orientation column. The...

A cortical column, also called hypercolumn or sometimes cortical module,[1] is a group of neurons in the brain cortex which can be successively penetrated by a probe inserted perpendicularly to the cortical surface, and which have nearly identical...