Cortical columns for quick brains
  It is widely believed that the particular wiring observed within cortical columns boosts neural computation. We use rewiring of neural networks performing real-world cognitive tasks to study the validity of this argument. In a vast survey of wirings within the column we detect, however, no traces of the proposed effect. It is on the mesoscopic inter-columnar scale that the existence of columns - largely irrespective of their inner organization - enhances the speed of information transfer and minimizes the total wiring length required to bind the distributed columnar computations towards spatio-temporally coherent results. 
Ralph L. Stoop, Victor Saase, Clemens Wagner, Britta Stoop, Ruedi   Stoop
q-bio.NC physics.bio-ph