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首页> 外文期刊>Progress in brain research >Corticocortical and thalamocortical information flow in the primate visual system.
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Corticocortical and thalamocortical information flow in the primate visual system.

机译：皮层和丘脑信息在灵长类动物视觉系统中流动。

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摘要

Visual cortex in primates contains a mosaic of several dozen visual areas that collectively occupy a large fraction of cerebral cortex ( approximately 50% in the macaque; approximately 25% in humans). These areas are richly interconnected by hundreds of reciprocal corticocortical pathways that underlie an anatomically based hierarchy containing multiple processing streams. In addition, there is a complex pattern of reciprocal connections with the pulvinar, which itself contains about 10 architectonically distinct subdivisions. Information flow through these corticocortical and corticothalamic circuits is regulated very dynamically by top-down as well as bottom-up processes, including directed visual attention. This chapter evaluates current hypotheses and evidence relating to the interaction between thalamocortical and corticocortical circuitry in the dynamic regulation of information flow.
机译：灵长类动物的视觉皮层包含数十个视觉区域的马赛克，这些区域共同占据了大脑皮层的很大一部分（猕猴约占50％;人类约占25％）。这些区域通过数百个相互的皮层皮质通道相互连接，这些通道位于包含多个处理流的基于解剖结构的层次结构的基础上。另外，与髓核之间存在相互联系的复杂模式，其本身包含约10个在结构上截然不同的细分。自上而下和自下而上的过程（包括定向的视觉注意）非常动态地调节通过这些皮质皮质和皮质丘脑回路的信息流。本章评估了有关信息流动态调节中丘脑皮层与皮层皮质电路之间相互作用的当前假设和证据。

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