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The primate visual cortex, including that of man, receives separate input from each eye and these interact in binocular cortical neurones. This organization is known to be vulnerable to disruption in early life. To understand the development of human visual cortex, and to detect and assess disorders of binocular function at the earliest possible age, a robust method is needed for detecting binocular interactions in the infant's visual system. We have done this by recording cortical visual evoked responses (VERs) to the onset and offset of binocular correlation in a large-screen dynamic random dot display. We report here that, in general, the human infant has a functional binocular visual cortex by 3 months of age, with some individuals showing cortical binocularity at an earlier age.

Type

Journal article

Journal

Nature

Publication Date

27/11/1980

Volume

288

Pages

363 - 365

Keywords

Age Factors, Color Perception, Evoked Potentials, Functional Laterality, Humans, Infant, Visual Cortex, Visual Perception