松鼠猴苍白球内、外部的不同传入纤维

Distinct afferents to internal and external pallidal segments in the squirrel monkey.

作者信息

Parent A, Smith Y, Filion M, Dumas J

机构信息

Centre de Recherche en Neurobiologie, Université Laval et Hôpital de l'Enfant-Jésus, Québec, Canada.

出版信息

Neurosci Lett. 1989 Jan 16;96(2):140-4. doi: 10.1016/0304-3940(89)90047-5.

DOI:10.1016/0304-3940(89)90047-5

PMID:2927717

Abstract

The use of retrograde fluorescence double-labeling method has revealed that the internal (GPi) and external (GPe) segments of globus pallidus in squirrel monkey receive projections from different cell populations in striatum and subthalamic nucleus. Striatal neurons projecting either to GPi or GPe formed wide and nonoverlapping cell bands oriented obliquely and covering large portions of putamen and caudate nucleus. Subthalamic neurons projecting to GPe were more abundant and more laterally located than those projecting to GPi. A few cells branching to GPi and GPe were found in subthalamic nucleus but not in striatum. Thus, different striatal and subthalamic neuronal populations influence GPi and GPe in primates.

摘要

逆行荧光双标记法的应用表明，松鼠猴苍白球的内侧（GPi）和外侧（GPe）节段接受来自纹状体和丘脑底核不同细胞群的投射。投射到GPi或GPe的纹状体神经元形成了宽阔且不重叠的细胞带，这些细胞带呈倾斜方向排列，覆盖了壳核和尾状核的大部分区域。投射到GPe的丘脑底核神经元比投射到GPi的更丰富且更靠外侧。在丘脑底核中发现了一些分支到GPi和GPe的细胞，但在纹状体中未发现。因此，不同的纹状体和丘脑底核神经元群影响灵长类动物的GPi和GPe。