Martin KA 2002 The microcircuitry of the neocortex is bewildering in its anatomical detail, but seen through the filters of physiology, some simple circuits have been suggested. Intensive investigations of the cortical representation of orientation, however, show how difficult it is to achieve any consensus on what the circuits are, how they develop, and how they work. New developments in modeling allied with powerful experimental tools are changing this. Experimental work combining optical imaging with anatomy and physiology has revealed a rich local cortical circuitry. Whereas older models of cortical circuits have concentrated on simple 'feedforward' circuits, newer theoretical work has explored more the role of the recurrent cortical circuits, which are more realistic representations of the actual circuits and are computationally richer. https://sonar.ch/global/documents/190898 eng info:eu-repo/semantics/altIdentifier/doi/10.1016/s0959-4388(02)00343-4 info:eu-repo/semantics/altIdentifier/pmid/12139990 Current opinion in neurobiology. - 2002 Animals Feedback Models, Neurological Nerve Net Neural Inhibition Orientation Pyramidal Cells Visual Cortex Visual Pathways Visual Perception Microcircuits in visual cortex. http://purl.org/coar/resource_type/c_6501