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- W2049402574 abstract "Abstract A young (4 1 2 months old) rhesus monkey was subjected to bilateral removal of striate cortex. No striate cortex remained in post-mortem examination, but a small cluster of undegenerated cells was found in each anteroventral lateral geniculate nucleus. A series of eleven experiments, involving various types of visual discriminations, is described. It was found that no discrimination was possible when luminous flux was equated, provided certain other differences between the stimuli were not present. When, however, there was a difference in total contour length, performance was far above chance, even with flux equated. The animal could also respond to moving stimuli. It could not discriminate very effectively, however, between a flickering stimuli and a “phi” movement synchronized with the flicker, nor could it make a red-green discrimination. Various speculations are put forward concerning the nature of the residual vision, and it is suggested that this animal could discriminate the integral of all retinal ganglionic activity, whether based on the response to steady illumination, or to spatial (contour) or temporal (movement or flicker) gradients. No discrimination, however, was possible based on the distribution of such variation." @default.
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- W2049402574 date "1963-08-01" @default.
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- W2049402574 title "Contour discrimination in a young monkey with striate cortex ablation" @default.
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- W2049402574 doi "https://doi.org/10.1016/0028-3932(63)90004-6" @default.
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