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| | Journal of Vision - Color opponent retinal ganglion cells in the tammar wallaby retina, by (Site not responding. Last check: 2007-10-10) |
 | | The peak spectral sensitivities of wallaby cone photoreceptors have been estimated to be 539 nm for the middle wavelength-sensitive cone and 420 nm for the short wavelength-sensitive cone (Hemmi, 1999; Hemmi, Maddess, and Mark, 2000). |
 | | The action spectra of the two wallaby cone types (peak for M cones at 539 nm and for S cones at 420 nm) overlap with the spectra of the three stimulus phosphors, and, therefore, each kernel in Figure 2A represents contributions from both M- and S-cone pathways, albeit at different ratios. |
 | | Unlike wallaby, the commonly found color opponent ganglion cells in primates and cats are S-on/M-off (Cleland and Levick, 1974; Dacey and Lee, 1994; Chichilnisky and Baylor, 1999), although rarely encountered M-on/S-off cells have been described in the lateral geniculate nucleus of monkeys (Valberg, Lee, and Tigwell, 1986). |
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