Receptive field subregion maps (X-Y is visual space, height is normalized spike rate) of the receptive field of three neurons in mouse primary visual cortex depicted using 3D meshes. All three neurons share the same receptive field subregion. Such high-resolution receptive field maps reveal shared elementary subunits of receptive fields in mouse visual cortex, suggesting principles for how cortical circuitry is wired to generate a diversity of selectivity, when there are few unique upstream afferents. For further details, please see this paper.