A summary diagram. A, The density of GABAergic, PV, SOM, and VIP inputs to PV neurons at different somatodendritic positions. B, Each column represents the relative frequencies of PV, SOM, and VIP inputs in GABAergic inputs to PV neurons. C, Schematic diagram summarizing the neocortical GABAergic network. See Discussion for more details. Pyr, pyramidal cell.