Thalamo-cortical projections to the posterior parietal cortex in the monkey

被引：22

作者：

Matsuzaki, R ^{[1
]}

Kyuhou, SI ^{[1
]}

Matsuura-Nakao, K ^{[1
]}

Gemba, H ^{[1
]}

机构：

[1] Kansai Med Univ, Dept Physiol, Moriguchi, Osaka 5708506, Japan

来源：

NEUROSCIENCE LETTERS | 2004年 / 355卷 / 1-2期

基金：

日本学术振兴会;

关键词：

thalamus; posterior parietal cortex; nucleus pulvineris; readiness potential; cortical field potential; motor function;

D O I：

10.1016/j.neulet.2003.10.066

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Thalamo-cortical projections to the posterior parietal cortex (PPC) were investigated electrophysiologically in the monkey. Cortical field potentials evoked by the thalamic stimulation were reconded with electrodes chronically implanted on the cortical surface and at a 2.0-3.0 mm cortical depth in the PPC. The stimulation of the nucleus lateralis posterior (LP), nucleus ventralis posterior lateralis pars caudalis (VPLc), and nucleus pulvinaris lateralis (Pul.l) and media lis (Pul.m) induced surface-negative, depth-positive potentials in the PPC. The LP and VPLc projected mainly to the superior parietal lobule (SPL) and the anterior bank of the intraparietal sulcus (IPS), and the Pul.m mainly to the inferior parietal lobule (IPL) and the posterior bank of the IPS. The Pul.l had projections to all of the SPL, the IPL and both the banks. The significance of the projections is discussed in connection with motor functions. (C) 2003 Elsevier Ireland Ltd. All rights reserved.

引用

页码：113 / 116

页数：4

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