FUNCTIONAL ORGANIZATION OF VISUAL CORTEX

大脑中大量视野图的发现 大脑皮层导致了这样的假设，即每个视觉区域都有自己的一套功能 在视觉感知方面的功能。至少有九个皮质视觉区域是 存在于猫头鹰猴体内的灵长类动物，已被定位最多 完全地。我们试图确定视觉信息是如何在 分析猫头鹰猴神经生理反应的视觉区域 单个神经元的特性。在早期的工作中，我们发现有一块田 类似于移动表面的随机点是一种非常强的刺激 大多数神经元位于颞中视区(MT)。我们建议 研究MT神经元对多种不同物质的反应 由计算机控制的模拟移动表面的视频显示器。这些 展示包括刺激吉布森式视觉流动、运动的图案 视差和纹理渐变提示，用于深度感知，并嵌入表格 在质地上。我们建议研究方向特异性的机制。 适应，运动等强烈视觉错觉的基础 后遗症，在定向选择的细胞群体中 主视面积(V-I)和MT。我们已经发现，大脑中的大多数神经元 背外侧视觉区域(DL)与刺激维度密切相关 (长度和宽度)在兴奋时与位置和对比度无关 接受域，我们试图确定是否存在一列 类似于柱状系统的DL尺寸参数选择系统 用于V-I中的取向选择性。我们还试图确定DL是否 自立体深度调节以来，神经元通过双眼视差进行调节 与维度偏好相结合可能有助于 大小恒定，判断物体在不同的实际大小 距离。大脑皮质视觉区域功能的发现是 可能会对理解 视知觉的机制和用于诊断的 神经眼科疾病。

The discovery of a large number of maps of the visual field in the cerebral cortex has led to the hypothesis that each visual area performs its own set of functions in visual perception. At least nine cortical visual areas are present in the owl monkey, the Primate which has been mapped most completely. We seek to determine how visual information is processed in the owl monkey's visual areas by analyzing the neurophysiological response properties of single neurons. In earlier work we have found that a field of random dots resembling a moving surface is ia very strong stimulus for most neurons in the middle temporal visual area (MT). We propose to investigate the responses of MT neurons to a wide variety of computer-controlled video displays that simulate moving surfaces. These displays include patterns that stimulate Gibsonian visual flow, motion parallax and texture gradient cues for depth perception, and form embedded in texture. We propose to investigate the mechanisms of direction-specific adaptaion, the basis of strong visual illusions such as the motion after-effect, in the directionally selective cell populations in the primary visual area (V-I) and MT. We have found that most neurons in the dorsolateral visual area (DL) are sharply tuned to stimulus dimensions (length and width) independent of position and contrast in their excitatory receptive fields, and we seek to determine whether there exists a columnar system for dimensional preferences in DL analogous to the columnar system for orientation selectivity in V-I. We also seek to determine whether DL neurons are tuned by binocular disparity since stereoscopic depth tuning coupled with dimensional preference could contribute to the mechanism of size constancy, the judgment of the actual size of objects at different distances. The discovery of the functions of the cortical visual areas is likely to have far-reaching implications for the understanding of the mechanisms of visual perception and for the diagnosis of neur-ophthalmological disorders.