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The Journal of Neuroscience, May 4, 2005, 25(18):4527-4539; doi:10.1523/JNEUROSCI.3921-04.2005

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Behavioral/Systems/Cognitive
Chromatic Organization of Ganglion Cell Receptive Fields in the Peripheral Retina

Samuel G. Solomon,¹ Barry B. Lee,^2,3 Andrew J. R. White,¹ Lukas Rüttiger,² and Paul R. Martin^1,4,5

¹Department of Physiology F13, The University of Sydney, Sydney, New South Wales 2006, Australia, ²Department of Neurobiology, Max Planck Institute for Biophysical Chemistry, D-37077 Göttingen, Germany, ³College of Optometry, State University of New York, New York, New York 10036, ⁴National Vision Research Institute of Australia, Carlton, Victoria 3053, Australia, and ⁵Department of Optometry and Vision Sciences, The University of Melbourne, Melbourne, Parkeville 3052, Australia

This study addresses the chromatic properties of receptive fields in the subcortical visual pathway of primates. There is agreement that, in the central visual field, many cells belonging to the parvocellular (PC) division of the subcortical pathway show red-green opponent responses, that a subgroup of cells belonging to the koniocellular (KC) pathway shows blue-yellow opponent responses, and that magnocellular (MC) pathway cells show only weak signs of chromatic input. However, the chromatic properties of ganglion cells in the peripheral retina are poorly understood. Here, we measured the temporal-chromatic properties of ganglion cells in extracellular in vivo recordings from peripheral macaque retina. We show that the chromatic responsivity of peripheral KC ("blue-on") and MC cells is very similar to that of their counterparts in the foveal retina. Cone-opponent responses are expressed only at low temporal frequencies (<10 Hz) in the majority of peripheral PC cells, and some peripheral PC cells show non-opponent response properties. With these exceptions, the chromatic properties of ganglion cells are essentially preserved throughout the first 50° of visual eccentricity. The main change seen in passing from foveal to peripheral retina is that all ganglion cell classes become more responsive to high temporal-frequency modulation.

Key words: color vision; primate; visual field; parvocellular; magnocellular; koniocellular

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Received Sep 22, 2004; revised March 21, 2005; accepted March 21, 2005.

This article has been cited by other articles:

				C. Tailby, S. G. Solomon, and P. Lennie Functional Asymmetries in Visual Pathways Carrying S-Cone Signals in Macaque J. Neurosci., April 9, 2008; 28(15): 4078 - 4087. [Abstract] [Full Text] [PDF]

				B. A. Szmajda, P. Buzas, T. FitzGibbon, and P. R. Martin Geniculocortical relay of blue-off signals in the primate visual system PNAS, December 19, 2006; 103(51): 19512 - 19517. [Abstract] [Full Text] [PDF]

				P. Buzas, E. M. Blessing, B. A. Szmajda, and P. R. Martin Specificity of M and L Cone Inputs to Receptive Fields in the Parvocellular Pathway: Random Wiring with Functional Bias J. Neurosci., October 25, 2006; 26(43): 11148 - 11161. [Abstract] [Full Text] [PDF]

				S. G. Solomon, B. B. Lee, and H. Sun Suppressive surrounds and contrast gain in magnocellular-pathway retinal ganglion cells of macaque. J. Neurosci., August 23, 2006; 26(34): 8715 - 8726. [Abstract] [Full Text] [PDF]

				P. R. Jusuf, P. R. Martin, and U. Grunert Random Wiring in the Midget Pathway of Primate Retina J. Neurosci., April 12, 2006; 26(15): 3908 - 3917. [Abstract] [Full Text] [PDF]

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