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首页> 外文期刊>The European Journal of Neuroscience >Information processing from the motor cortices to the subthalamic nucleus and globus pallidus and their somatotopic organizations revealed electrophysiologically in monkeys
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Information processing from the motor cortices to the subthalamic nucleus and globus pallidus and their somatotopic organizations revealed electrophysiologically in monkeys

机译：从电机皮质到氨粒细胞核和Globus pallidus的信息处理及其躯体运动组织在猴子中透露电生理学

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摘要

To understand how the information derived from different motor cortical areas representing different body parts is organized in the basal ganglia, we examined the neuronal responses in the subthalamic nucleus (STN), and the external (GPe) and internal (GPi) segments of the globus pallidus (input, relay and output nuclei, respectively) to stimulation of the orofacial, forelimb and hin-dlimb regions of the primary motor cortex (Ml) and supplementary motor area (SMA) in macaque monkeys under the awake state. Most STN and GPe/GPi neurons responded exclusively to stimulation of either the Ml or SMA, and one-fourth to one-third of neurons responded to both. STN neurons responding to the hindlimb, forelimb and orofacial regions of the Ml were located along the medial-lateral axis in the posterolateral STN, while neurons responding to the orofacial region of the SMA were located more medially than the others in the anteromedial STN. GPe/GPi neurons responding to the hindlimb, forelimb and orofacial regions of the Ml were found along the dorsal-ventral axis in the posterolateral GPe/GPi, and neurons responding to the corresponding regions of the SMA were similarly but less clearly distributed in more anteromedial regions. Moreover, neurons responding to the distal and proximal forelimb Ml regions were found along the lateral-medial axis in the STN and the ventral-dorsal axis in the GPe/GPi. Most STN and GPe/GPi neurons showed kinaesthetic responses with similar somatotopic maps. These observations suggest that the somatotopically organized inputs from the Ml and SMA are well preserved in the STN and GPe/GPi with partial convergence.
机译：要了解代表不同体零的不同电机皮质区域的信息是如何组织在基底神经节中，我们检查了亚饱和核（STN）和外部（GPE）和外部（GPE）和内部（GPI）段的神经元反应在唤醒状态下，Pallidus（分别）刺激施用猕猴的初级电机皮质（ml）和辅助电动机区域（SMA）的初次，前肢和HIN-DLIMB区域。大多数STN和GPE / GPI神经元专门响应ML或SMA，并且四分之一至三分之一的神经元反应两者。响应于后肢，M1的前肢和orofial区的STN神经元沿着后侧STN中的内侧轴定位，而对SMA的orofial区的神经元比在前述STN中的其他内部位于其他内侧。沿着后腹轴响应于后肢，前肢和毫米的神经元的GPE / GPI神经元在后腹侧轴上发现，并且响应SMA的相应区域的神经元类似地但在更多的前置时分布不太清楚地分布地区。此外，在GPE / GPI中沿STN和腹侧轴的侧向中间轴发现响应远端和近端前肢ML区域的神经元。大多数STN和GPE / GPI神经元显示出具有相似的躯体图谱的Kinaesthethet响应。这些观察结果表明，来自ML和SMA的躯体组织的输入，其在STN和GPE / GPI中具有部分收敛。

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