The Role of the Pulvinar in Spatial Visual Attention.

Ricardo Gattass, Juliana G M Soares, Bruss Lima
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引用次数: 6

Abstract

This chapter deals with the role of the pulvinar in spatial visual attention. There are at least two aspects in which the pulvinar seems to be instrumental for selective visual processes. The first aspect concerns pulvinar connectivity pattern. The pulvinar is connected with brain regions known to be playing a role in attentional mechanisms, such as area V4, the superior colliculus (SC), and the inferior parietal cortex (IP). Additionally, the pulvinar is richly interconnected with multiple cortical areas. This enables the pulvinar to serve as a hub for brain communication, potentially gating the flow of information across different regions. The second aspect concerns neuronal circuits intrinsic to the pulvinar. We claim these circuits are subserving three basic steps regarding the allocation of spatial attention: disengaging from the current focus of attention, moving it to a new target, and engaging it at a new position.

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脑后皮层在空间视觉注意中的作用。
这一章讨论的是颅底在空间视觉注意中的作用。至少在两个方面,枕状核似乎在选择性视觉过程中起着重要作用。第一个方面涉及到pulvinar连接模式。枕状核与已知在注意力机制中起作用的大脑区域相连,如V4区、上丘(SC)和下顶叶皮层(IP)。此外,枕侧与多个皮质区域紧密相连。这使得枕状核可以作为大脑交流的枢纽,潜在地控制信息在不同区域之间的流动。第二个方面与枕侧固有的神经回路有关。我们认为,这些神经回路为空间注意力分配提供了三个基本步骤:脱离当前的注意力焦点,将其转移到一个新的目标,并将其转移到一个新的位置。
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来源期刊
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期刊介绍: "Advances in Anatomy, Embryology and Cell Biology" presents critical reviews on all topical fields of normal and experimental anatomy including cell biology. The multi-perspective presentation of morphological aspects of basic biological phenomen in the human constitutes the main focus of the series. The contributions re-evaluate the latest findings and show ways for further research.
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