RT Journal Article
SR Electronic
T1 Uniform Signal Redundancy of Parasol and Midget Ganglion Cells in Primate Retina
JF The Journal of Neuroscience
JO J. Neurosci.
FD Society for Neuroscience
SP 4675
OP 4680
DO 10.1523/JNEUROSCI.5294-08.2009
VO 29
IS 14
A1 Jeffrey L. Gauthier
A1 Greg D. Field
A1 Alexander Sher
A1 Jonathon Shlens
A1 Martin Greschner
A1 Alan M. Litke
A1 E. J. Chichilnisky
YR 2009
UL http://www.jneurosci.org/content/29/14/4675.abstract
AB The collective representation of visual space in high resolution visual pathways was explored by simultaneously measuring the receptive fields of hundreds of ON and OFF midget and parasol ganglion cells in isolated primate retina. As expected, the receptive fields of all four cell types formed regular mosaics uniformly tiling the visual scene. Surprisingly, comparison of all four mosaics revealed that the overlap of neighboring receptive fields was nearly identical, for both the excitatory center and inhibitory surround components of the receptive field. These observations contrast sharply with the large differences in the dendritic overlap between the parasol and midget cell populations, revealing a surprising lack of correspondence between the anatomical and functional architecture in the dominant circuits of the primate retina.