Table 1:
Analogies between the properties of the hemi-retinal image and the local organisation of receptive field properties in the non-granular layers. CO blobs are assumed to be the central visual field's representation in the local maps.

Global MappingLocal Mapping
oriented linesorientation preference
fovea -> peripheryCO blob -> interblob
decreasing ganglion cell densitydecreasing metabolic activity
decreasing density of colour cones decreasing colour selectivity
decreasing contrast sensitivity low -> high contrast preference