PARALLEL PATHWAYS IN PRIMATE VISUAL CORTEX

描述：我们建议使用病变研究来确定是否有 人类和猕猴视觉中颜色和形状信息的相似处理 大脑皮层。对猕猴的研究将继续探索 个别皮质视觉区域的贡献，目标是 确定能够唯一反映每个领域的能力 活动。我们发现近纹外视的局限性损害 V2区和V4区会导致复杂的视网膜损害，但不是 基本的视觉功能。这些研究将扩展到 颞下视区病变TEO和TE的影响 它们的大部分输入来自上述大脑皮层区域。我们将使用 我们获得的关于纹外猕猴视觉的累积信息 探索人类视觉系统中平行组织的领域。 应特别注意近纹外视损害。 区域，因为损失的可视分布有助于探索相似之处 在人类和猕猴的视皮层之间。我们的研究将集中在人类身上 大脑色觉障碍和视觉形式失认是最常见的 戏剧性障碍表明人类视觉皮质被组织成 功能模块。

DESCRIPTION: We propose to use lesion studies to determine whether there is similar processing of color and form information in human and macaque visual cortex. Studies with macaque monkeys will continue to explore the contribution of individual cortical visual areas, with the goal of determining capabilities that are uniquely reflective of each area's activity. We have found that localized lesions in near-extrastriate visual areas V2 and V4, cause precisely retintopic losses of complex, but not fundamental, visual functions. These studies will be extended to the effects of lesions of inferotemporal visual areas TEO and TE, which receive much of their input from the above cortical areas. We will use the cumulated information we have obtained about extrastriate macaque visual areas to explore parallel organization in the human visual system. Particular attention will be paid to lesions of near extrastriate visual areas, since the visual distribution of losses can help explore parallels between human and macaque visual cortex. Our studies will focus on human cerebral achromatopsia and visual form agnosias, which are among the most dramatic disorders suggesting that human visual cortex is organized into functional modules.