Hierarchical counterstream via feedforward and feedback interactions is a major organizing principle of the cerebral cortex. The counterstream. as a topological feature of the network of cortical areas. is captured by the convergence and divergence of paths through directed links. https://safeersappliancers.shop/product-category/faber-high-light-rad-brs-wh-matt-a91-matt-white-91cm-110-0456-206-cooker-hood/