The blobs of the visual coex are associated with

The visual coex has six layers. The axons from the LGB neurons end on pyramidal cells in layer 4 which in turn project primarily to more superficial layers (layers 2 and 3). These layers contain &;clusters&; of cells, called blobs which contain high concentration of the mitochondrial enzyme cytochrome oxidase. These are concerned with colour vision.Ref: Textbook of physiology, Dir. Prof. AK Jain, 5th edition