Development of Sensory and Motor Binocularity

为了获得有效的人类视觉，大脑必须整合来自两只眼睛的双眼输入，并反过来驱动两只眼睛在适当的方向上进行双眼运动。感觉双目视的发展似乎依赖于使两只眼睛对齐的能力，从而给每只眼睛视网膜上相应的点以视觉刺激。这种排列是视觉皮层中对视网膜视差和立体视觉敏感的细胞发育的前兆。本项目研究眼球运动和感觉因素如何共同促进人类婴儿期双眼视觉功能的发展。模型概述了可能的发展关系，并将使用一种新的双目眼球追踪技术来测量人类婴儿的眼球运动。将发展运动双眼视的数据与通过各种行为和非侵入性测试测量的发展感觉双眼视的数据进行比较，以了解感觉和运动因素是如何结合起来的。这项研究的结果将对视觉科学、人类发育研究和人类行为分析具有重要意义，对理解双眼视觉障碍具有进一步的重要性。＊＊＊

For effective human vision, the brain must integrate the binocular input from the two eyes, and in turn drive the two eyes to move binocularly in appropriate directions. The development of sensory binocularity appears to depend on the ability to align the two eyes to give visual stimulation of corresponding points on the retina of each eye. This alignment is a precursor to development of cells in the visual cortex that are sensitive to retinal disparity, and for stereoscopic vision. This project studies how oculomotor and sensory factors combine to contribute to the development of binocular visual functions during infancy in humans. Models are outlined for possible developmental relationships, and a novel binocular eye-tracking technique will be used to measure human infant eye movements. Data on developing motor binocularity is compared to data on developing sensory binocularity measured by a variety of behavioral and non-invasive tests, to see how sensory and motor factors are combined. Results from this study will be important to visual science, and also to developmental human research and to human performance analysis, with further likely importance to understanding disorders in binocular vision. ***