Parvocellular pathway

Figure 2.18 Organization of the visual system. Two main pathways, the magnocellular and the parvocellular pathways, can be distinguished. (Reproduced by permission from Massachusetts Institute of Technology. D. C. Van Essen and E. A Deyoe. Concurrent Processing in the Primate Visual Cortex. M. S. Grazzanida (ed.), The Cognitive Neurosciences, The MIT Press, pp. 383-400, 1995.)...

Keri S, Kelemen O, Janka Z, Benedek G. 2005a. Visual-perceptual dysfunctions are possible endophenotypes of schizophrenia Evidence from the psychophysical investigation of magnocellular and parvocellular pathways. Neuropsychology 19 649-656. 

The structure of layer 2 and 3 creates two new pathways the P-B (parvocellular-blob pathway) and the P-I (parvocellular-interblob pathway). The cells located inside the blobs of layer 2 and 3 are either color or brightness selective. They are not orientation selective. 

Magnocellular Pathway Parvocellular-Blob Pathway Parvocellular-Interblob Pathway... 

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