Parallel processing in the corticogeniculate pathway of the macaque monkey.

Parallel processing in the corticogeniculate pathway of the macaque monkey.
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猕猴的皮质生成途径中的平行处理。

DOI:
10.1016/j.neuron.2009.02.024
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发表时间:
2009-04-16
期刊:
影响因子:
16.2
通讯作者:
Usrey, W. Martin
Usrey, W. Martin
中科院分区:
医学1区
文献类型:
--
作者:
Briggs, Farran;Usrey, W. Martin

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尽管皮质丘脑反馈在物种和模式中普遍存在,但其在感觉加工中的作用尚不清楚。本研究首次详细描述了灵长类动物皮质化神经元的视觉生理学。利用电刺激识别皮质状神经元,我们区分了三组神经元,它们的反应特性与目标结构丘脑外侧膝状核(LGN)的大细胞层、旁细胞层和koniocellular层的神经元非常相似。我们的研究结果表明,灵长类动物的皮质化反馈具有流特异性,并提供了强有力的证据,支持皮质化反馈可以以流选择性的方式影响从丘脑到皮层的感觉信息传递的观点。
Although corticothalamic feedback is ubiquitous across species and modalities, its role in sensory processing is unclear. This study provides the first detailed description of the visual physiology of corticogeniculate neurons in the primate. Using electrical stimulation to identify corticogeniculate neurons, we distinguish three groups of neurons with response properties that closely resemble those of neurons in the magnocellular, parvocellular and koniocellular layers of their target structure, the lateral geniculate nucleus (LGN) of the thalamus. Our results indicate that corticogeniculate feedback in the primate is stream-specific and provide strong evidence in support of the view that corticothalamic feedback can influence the transmission of sensory information from the thalamus to the cortex in a stream-selective manner.
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