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首页> 外文期刊>Trends in Neurosciences >The thalamic matrix and thalamocortical synchrony.
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The thalamic matrix and thalamocortical synchrony.

机译:丘脑基质与丘脑皮层同步。

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摘要

High-frequency synchronous activity of neurons in the cerebral cortex and thalamus is a concomitant of discrete conscious events. In the primate thalamus, a newly identified population of neurons provides a basis for this synchronization. A matrix of calbindin-immunoreactive neurons extends throughout the thalamus and projects to superficial layers of cortex over wide areas, unconstrained by boundaries between areas. In some nuclei, a core of parvalbumin-immunoreactive neurons is superimposed upon the matrix. Core neurons project in a topographically ordered fashion to middle layers of the cortex in an area-specific manner. Matrix neurons, recruited by corticothalamic connections, can disperse activity across cortical areas and thalamic nuclei. Their superficial terminations can synchronize specific and nonspecific elements of the thalamocortical network in coherent activity that underlies cognitive events.
机译:大脑皮层和丘脑中神经元的高频同步活动伴随着离散的意识事件。在灵长类丘脑中,新近识别出的神经元群体为这种同步提供了基础。钙结合蛋白免疫反应性神经元的矩阵延伸到整个丘脑,并在宽广的区域投射到皮层表层,不受区域之间边界的限制。在某些核中,小白蛋白免疫反应性神经元的核心叠加在基质上。核心神经元以区域特定的方式以地形有序的方式投射到皮质的中间层。通过皮质丘脑连接募集的基质神经元可以将活性分散在整个皮质区域和丘脑核中。它们的表面终止可以使作为认知事件基础的连贯活动同步丘脑皮层网络的特定和非特定元素。

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