Adaptive Pulvinar Circuitry Supports Visual Cognition.
Adaptive Pulvinar Circuitry Supports Visual Cognition.
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DOI：
10.1016/j.tics.2015.10.003
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发表时间：
2016-02
影响因子：
19.9
通讯作者：
Bourne JA
中科院分区：
文献类型：
--
作者：
Bridge H;Leopold DA;Bourne JA
枕是灵长类动物最大的丘脑核，也是最神秘的核之一。为了理解它在视觉中的作用，人们把注意力集中在它与视觉皮层的丰富联系上。虽然它在皮层中的连接映射显示了广泛的地形组织，但其投射也具有相当大的收敛和发散。因此，枕常被认为是前脑的中枢。此外，新的证据表明，来自视网膜和上级丘等结构的相对温和的输入可能会对视觉皮层的功能组织产生重要影响，特别是在早期发育期间。在这里，我们回顾了最近的研究，投下新鲜的光，通过枕的许多会聚通路有助于视觉认知。
The pulvinar is the largest thalamic nucleus in primates, and one of the most mysterious. Endeavors to understand its role in vision have focused on its abundant connections with the visual cortex. While its connectivity mapping in the cortex displays a broad topographic organization, its projections are also marked by considerable convergence and divergence. As a result, the pulvinar is often regarded as a central forebrain hub. Moreover, new evidence suggests that its comparatively modest input from structures such as the retina and superior colliculus may critically shape the functional organization of visual cortex, particularly during early development. Here we review recent studies that cast fresh light on how the many convergent pathways through the pulvinar contribute to visual cognition.