Blobs are sections of primary visual cortex (V1) above and below layer IV where groups of neurons sensitive to color assemble in cylindrical shapes.
They were first identified in 1979 by Margaret Wong-Riley in cats when she used a cytochrome oxidase stain, from which they get their name.
Interblobs are areas between blobs that receive the same input, but are sensitive to orientation instead of color.
This pathway begins at the photoreceptors which then relay signals to the 'K' ganglion cells in the retina.
[2] Lesioning of the koniocellular pathway leads to lack of acuity in shapes and colour.