Organization of Striate and Extrastriate Visual Areas

纹状和纹外视觉区域的组织

• 批准号: 7142442
• 负责人: JENNIFER M ICHIDA
• 金额: $ 5.04万
• 依托单位: UNIVERSITY OF UTAH
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-12-01 至 2008-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7142442
• 关键词: Area; Cells; Dimensions; Feedback; Functional Imaging; Goals; Individual; Lateral; Maps; Measures; Neurons; Pathway interactions; Pattern; Primates; Process; Property; Relative (related person); Role; Specificity; System; V2 neuron; Visual; Visual Cortex; Visual Fields; area V1; area V2; area striata; extrastriate; extrastriate visual cortex; receptive field; size; visual information

Within visual cortex individual areas integrate local information through lateral and columnar intra-areal connections. Primary visual cortex and visual association areas are connected through inter-areal feedforward and feedback connections. In order to gain a better understanding of the relative roles of inter- areal connections in visual information processing, one of the goals of this proposal is to determine the precise anatomical and functional organization of feeforward and feedback connections between primate visual cortical areas V1 and V2, and to investigate the possible existence of multiple systems of feedforward and feedback connections that relate to different V1 and V2 layers and functional compartments. Furthermore, in order to understand the specific contribution of inter- and intra-areal circuits to the classical and non-classical receptive field properties of visual cortex neurons, a second goal of this proposal is to investigate how the spatial dimensions and organization of individual V2 cells' receptive fields are reflected by the spatial organization of inter-areal V1-to V2 feedforward connections and by intra-areal V2 connections.

在Visual Cortex中，各个区域通过横向和圆柱内整合了本地信息 连接。一级视觉皮层和视觉关联区域通过美地间连接 馈电和反馈连接。为了更好地了解相互之间的相对作用 视觉信息处理中的环境连接，该提案的目标之一是确定 灵长类动物之间的精确解剖学和功能性组织 视觉皮质区域v1和v2，并研究多个进料系统的可能存在 以及与不同的V1和V2层和功能隔室有关的反馈连接。 此外，为了理解美园间电路对经典的特定贡献 视觉皮层神经元的非古典接受场特性，该建议的第二个目标是 研究如何反映单个V2细胞的接收场的空间维度和组织 由Areal-ealal V1-TO V2前馈连接的空间组织和AREAL内V2 连接。