Physiology and Psychophysics of Spatial Vision

该研究项目包括一系列 电生理学和心理物理学研究， 空间视觉方面。 在对纹状皮层的研究中 （皮质区V1），研究人员建议检查 细胞排列调整到不同的方向和空间 与细胞色素氧化酶斑点标记相关的频率 皮层模块 调查人员还计划研究 纹状体空间频率调谐和相位特异性 细胞随偏心率而变化。 在对第二代细胞的研究中， 皮质视觉区（V2），将确定这些细胞如何 响应简单的模式，很好地表征V1单位， 更复杂的模式，探索可能的 信息处理中发生的变化， 水平 在心理物理实验中，研究人员将检查 人类定位模式的能力的某些方面 的特点的模式，并研究一些 依赖于比值的模式判别问题 判断。 这两个问题领域都被选择来探索， 知觉实验中出现的某些问题， 考虑到皮质区V1和V2中细胞的可能作用， V2. 该研究项目的成果将有助于 对我们的视觉信息知识来说是非常重要的信息 由大脑处理。

This research project consists of a series of electrophysiological and psychophysical studies of certain aspects of spatial vision. In studies of the striate cortex (cortical area V1), the investigators propose to examine the arrangement of cells tuned to various orientations and spatial frequencies in relation to the cytochrome oxidase blobs marking the cortical modules. The investigators also plan to examine how the spatial frequency tuning and phase-specificity of striate cells vary with eccentricity. In studies of cells in the second cortical visual area (V2), it will be determined how these cells respond to simple patterns which well characterize V1 units, and to somewhat more complex patterns, to explore possible transformations occurring in information processing at this level. In the psychophysical experiments, the investigators will examine certain aspects of human ability to localize patterns independent of the characteristics of the patterns, and to study some problems of pattern discrimination which depend on ratio judgments. Both of these problem areas were chosen to explore in perceptual experiments certain issues which have arisen in considering the possible roles of cells in cortical areas V1 and V2. The results of this research project will contribute important information to our knowledge of visual information processing by the brain.