皮质膝状体结构与功能的跨物种比较。
A cross-species comparison of corticogeniculate structure and function.
作者信息
Hasse J Michael, Briggs Farran
机构信息
Program in Experimental and Molecular Medicine at Dartmouth, Hanover, New Hampshire.
Ernest J. Del Monte Institute for Neuroscience, University of Rochester School of Medicine, Rochester, New York.
出版信息
Vis Neurosci. 2017;34. doi: 10.1017/S095252381700013X. Epub 2017 Nov 16.
Abstract
The corticogeniculate circuit is an evolutionarily conserved pathway linking the primary visual cortex with the visual thalamus in the feedback direction. While the corticogeniculate circuit is anatomically robust, the impact of corticogeniculate feedback on the visual response properties of visual thalamic neurons is subtle. Accordingly, discovering the function of corticogeniculate feedback in vision has been a particularly challenging task. In this review, the morphology, organization, physiology, and function of corticogeniculate feedback is compared across mammals commonly studied in visual neuroscience: primates, carnivores, rabbits, and rodents. Common structural and organizational motifs are present across species, including the organization of corticogeniculate feedback into parallel processing streams in highly visual mammals.
摘要
皮质-膝状体回路是一条在进化上保守的通路，以反馈方向将初级视皮层与视觉丘脑相连。虽然皮质-膝状体回路在解剖学上结构稳固，但其对视觉丘脑神经元视觉反应特性的影响却很微妙。因此，发现皮质-膝状体反馈在视觉中的功能一直是一项特别具有挑战性的任务。在这篇综述中，我们比较了视觉神经科学中常用的几种哺乳动物（灵长类、食肉动物、兔子和啮齿动物）的皮质-膝状体反馈的形态、组织、生理学和功能。跨物种存在共同的结构和组织模式，包括在高度依赖视觉的哺乳动物中，皮质-膝状体反馈组织成并行处理流。
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